It’s About Time

Carriage Clocks

It’s About Time is a clock shop based Westcliff-on-Sea, Essex, which has been buying, selling and repairing antique clocks for over 3 decades.

We offer a wide range of antique carriage clocks, which are sold fully restored and fully guaranteed. We can also supply unrestored clocks for the trade or enthusiast. We have many overseas customers and can arrange for any clock to be sent to virtually anywhere in the world.

For further information please visit our main website at www.antiqueclock.co.uk
or call us on 01702 472574.

item

William Comyns Silver Timepiece

 £1,250.00 

120mm x 60mm x 50mm A large size solid silver carriage timepiece with an 8 day movement and enamel dial. The case is stamped with the hallmark of William Comyns of Beak Street, London. They were famous silversmiths and this piece was made in 1898 with the letter c. Sold with a 24 month guarantee.

item

V.A.P Brevete

 SOLD 

18 x 13 x 8cm An ebonised mantel - carriage clock with carry handle, gilt sight, full enamel dial showing Roman numerals and fine blued steel hands. An 8 day duration, time piece movement, stamped . This clock has very faint hairlines near the top of the dial which are not noticeable unless very close. Circa 1870 .

item

Striking Carriage Clock

 SOLD 

16.3 x 10 x 9cm A fine and well proportioned, polished Corniche case, carriage clock in very original condition with a large oval top glass to view the Bi-metallic , split , jewelled lever escapement . Gong striking on the Hour and half hour on a mellow gong . The movement has been completely serviced.

item

Silver Carriage Timepiece , 'Repousse' Case

 SOLD 

A fine small carriage timepiece in solid silver by Mappin and Webb of London. This clock has the London hallmarks for 1901 together with the Mappin & Webb Logo stamp. It's interesting to note that Jonathon Mappin started back in 1775 and the company is still trading to this day. A classic embossed floral design with 'C' scroll folding handle and little bun feet.

item

Silver Clock Timepiece, GS&Co

 £1,290.00 

This fine silver timepiece was made in 1905 by the Goldsmiths & Silversmiths Company of Regent Street, London. The solid silver 'engine turned' case has the classic 'C' scroll handle which folds. The movement is wound from a turn key behind the door and runs for a week. This clock has been fully serviced and is sold with a full 12month Guarantee.

item

Penlington & Batty Carriage Clock

 £1,450.00 

A gilded timepiece carriage clock retailed by Penlington & Batty around 1890. Curved and bevelled side glasses, with an unusual off white enamel dial showing fancy Arabic numerals. Wound once a week with a key. This clock does have a small chip to the right side glass which can be seen in the pictures and a minor chip to the top glass, however only noticeable upon close inspection. 12 month guarantee

item

Pendule d officer

 SOLD 

A fine Pendule d'officier with 8 day duration movement with a jeweled lever escapement . The convex enamelled dial showing black Arabic numerals with minutes to the outer edge and gilt quarter markers , decorated with finely chased , pierced and gilded hands . The case having floral and ribbon gilt mounts in the classic 'Pagoda' shape . The drop handle with vine leaves and grapes . Standing on four turned feet . Circa 1890.

item

Pearce and Sons,Paris .

 £1,650.00 

A fine example of a large 'Anglais Riche' carriage clock with push repeat . This was made by E.Maurice and Co who showed clocks at the Paris exhibition of 1889 . The clock was made for Pearce and Sons who retailed clocks in London from 1881 . The clock retains the original silvered , jewelled lever escapement .

item

Miniature Timepiece 'Carriage Clock' by Margaine

 SOLD 

A fine little carriage timepiece by the well known maker A. Margaine. The case is not the usual gilt but a Rhodium finish. It was silver/chrome plated originally around 100 years ago and only traces could be found when we dismantled the clock. We 'refreshed' it with the most precious of metals, Rhodium which has a similar appearance to silver but does not tarnish (Rhodium is currently 3 times the price of Platinum at $2750 an ounce!) This little timepiece is surprisingly rare and retains its original jeweled lever escapement. Viewing recommended!

item

Carriage Clock

 £1,275.00 

17 x 9 x 8cm A superb, small masked dial, striking carriage clock. The fully overhauled movement is gong striking on the hour and once for the half hours. The case is polished and laquered so will not require polishing for 15 years or more! This style of carriage clock dates back to around 1910.

item

Mappin and Webb ~ 1913

 SOLD 

A fine solid silver carriage timepiece on bun feet in rectangular form with folding handle. The round enamel dial showing Roman numerals with blued steel hands and makers/retailers name. The hallmarks for Mappin and Webb Ltd and dating with the letter 'O' to 1913 The case is engine turned with hand engraving framing each side.

item

H.Diriquen , Chantilly , Push repeat .

 SOLD 

Height 180mm , Depth 85mm , Width 95mm. This fine gorge cased carriage clock was made by H.Diriquen of Chantilly . The clock is in very original condition with a masked dial and top glass to view the original Bi-metallic , jeweled lever escapement . Push repeat and gong striking on the Hour with alarm facility . The movement is completely original and serviced , cleaned and polished and sold with a full 12 month guarantee .

item

Bazelaire a Paris

 SOLD 

22 x 16 x 13cm A fine rosewood mantel clock with boxwood line inlays and marquetry. The original silvered dial showing Roman numerals and blued hands in the Breguet style. This clock has a bell strike on the hour and one for the half hour. This early, portable edition dates from 1850 - 60. Fully restored.

item

Le Roy Petite Sonnerie

 SOLD 

17cm x 9cm x 8cm A quarter striking carriage clock with alarm by Le Roy et Fils . The clock is in very original condition and is still retaining the original bi-metallic silvered lever escapement with 12 jewels and numbered to the clock . Bell striking on the hour and quarters . The movement is stamped between the plates with the Henri Jacot oval stamp. Sold with a full 12 month guarantee . The dial showing Roman numerals with the blued steel moon hands and with push repeat button . Circa 1860-70 - Currently being restored .

item

Le Roy et Fils quarter striking

 SOLD 

17cm x 10cm x 9cm An extremely rare and early 'experimental' quarter striking carriage clock with alarm by Le Roy et Fils who were the clockmakers to King Louis Philippe I of France ( or the Horolgers du Roi ) with the outer protective leather case . The clock is in very original condition and is still retaining the original mono metallic gilded lever escapement with 12 jewels . Bell striking on the hour and two bells for the quarters . The unusual movement has been photographed throughout the restoration and these can be supplied with the clock . The engraved and gilded 'one piece' case has a shuttered rear panel which has been skillfully engraved sold with a full 12 month guarantee . The dial showing Roman numerals with the blued steel 'Trefoil' hands and with push repeat button , Circa 1840 .

item

Capucine by Legrand

 SOLD 

A good size , bell striking Capucine, carriage clock with alarm and pull repeat. The clock is in very original condition and has developed a beautiful 'patina'. Bell striking on the hour and two minutes after the hour as per French hourly strike with one blow on the bell for the half hour. The movement is stamped/signed-Legrand who would have made the clock in Paris circa 1820-30. Currently unrestored but sold with a full 12 month guarantee . The dial showing Roman numerals with the blued steel Breguet hands.

item

Grande Sonnerie

 £4,350.00 

18 x 10 x 9cm A fine 'Grande Sonnerie' carriage clock in a gilt gorge case with a white enamel dial and bevelled gilt sight ring . This clock has been fully restored , dismantled , serviced and regulated . The clock is stamped G.L. and numbered 578 .

item

Tupman , London - Quarter Strike

 SOLD 

19cm x 10cm x 8cm A fine and very original large carriage clock by Tupman of London . What is unusual and quite rare is the arrangement of the bells (with one positioned vertically above the other) and how it strikes - on the first quarter you have a single hammer blow on one bell , two blows for the half , Three for the quarter too and then on the hour it strikes on the two bells . The silvered dial is behind a superbly pierced and engraved dial mask . James Jeremiah Tupman came from the Clock making family of Tupman's and had a premises at Great Russell Street , London . Circa 1825 .

item

Le Roy et Fils - Corinthian Carriage Clock

 £3,250.00 

A fine and quite rare, exceptional carriage clock with Corinthian columns and two colour case. This clock has been fully restored and we have documented the jeweled lever escapement which is the original and stamped to the underside P.Millot. See photos to the left. The backplate is engraved Le Roy et Fils , Palais Royal 13-15, Paris. Number 12571. The firm of LeRoy was founded by Bazile Charles LeRoy in 1789. He was a clockmaker to the Emperor Napoleon, The Duke of Bourbon, Orleans and Princess Pauline. In 1823, he filed a patent for self-winding atmospheric clock operated by a weather vane. When Charles Louis died in 1865 his son Louis LeRoy carried on the running of the very successful business. The shop in London was at 57 New Bond Street. It was a British Royal Warrant holder under Queen Victoria, and was the only foreign clockmaker that had the British Royal Warrant. The clock strikes the hours on a gong, push repeat and has an alarm function. The silver colour of the case is Rhodium (which will not tarnish) the rest is of course, gold. The masked dial is again quite unusual in that it has red outer minutes. The hands are the classic Breguet' style. As with all our clocks you will receive the hand drawn label. This clock is quite large and viewing is highly recommended. Our overseas customers can take advantage of such great exchange rates too. Sold with a full 24 month Guarantee.

item

Bourdin, 28 Rue De La Paix

 SOLD 

This fine carriage clock by Bourdin has a very well engraved dial mask and shows the alarm dial below the six and is signed to the center. The movement has been fully dismantled and overhauled/serviced, as has the case and we have polished the glass inside and out. The case is the usual high quality construction of Bourdin and we have several photos of the case in pieces if you are interested. This clock strikes the hours on a bell and one blow of the bell for the half hour. If you are looking for a good carriage clock by a very well respected maker, this Bourdin dating to around 1870 is superb!

item

Idrac Le Roy, Henri Jacot, Half Hour Sonnerie

 SOLD 

Here we have something a little different, I will also say 'rare' as I do not believe you will see another clock quite like this ! Retailed by Idrac Le Roy , 22 Rue De Bouloi, Paris but made for him by Henri Jacot. This was most likely a special commission, Half hour sonnerie is silent on the quarter past and quarter too, but strikes the half hour with full grande sonnerie so there is no confusion at 12.30, 1 and 1.30, ingenious! If you depress the repeat button you get the full grande sonnerie on each quarter as expected. The clock strikes on two small early gongs. The mercurial gilding is very thick and still in remarkable condition. The glass is all original. The movement has been fully overhauled and with the addition of calendar and alarm make this quite an exceptional clock. The movement has a number stamp of 1866 which is also scratched on the underside of the escapement. The inside plate has the usual oval stamp of Jacot with the 1862 Medailles (see photos) for the London and Paris expositions which he was awarded the Bronze Medal. We would date this clock to around 1870 -75 .

item

Hump Back Carriage Clock

 SOLD 

110mm x 60mm x 50mm A fine arched-top or "hump back" carriage clock with a delightful dial mask and polished sight. With carry handle and small bun feet. 7 day duration. Made in France around 1910. This shape is becoming increasingly difficult to find and this is a good example of a non-striking variant. The case and movement have been fully refurbished and will be sold with a 12 month guarantee. 12 month guarantee

item

Henry Lepine , Petite Sonnerie , Repeat , Alarm

 SOLD 

16 x 9 x 8cm A fine , satin gilt carriage clock in a superb , large early cast 'gorge' case with 2 bell strike on the quarters , push repeat facility and alarm . The perfect enamelled dial showing Roman numerals and blued steel Breguet hands . Stamped with the H.L to the front plate and numbered jeweled lever , platform escapement . The case is full size and with the handle up measures 17cms tall . We have photographed this clock in detail throughout the restoration and the pictures can be seen by clicking here . Circa 1860-70 . 12 month RTB Guarantee

item

Henri Jacot with leather case .

 SOLD 

A very well presented carriage clock in a gilded gorge case . This striking and repeating carriage clock benefits from retaining the original silvered , Jeweled lever escapement which is visible through the large bevelled top glass . A white enamel dial with Roman numerals typical Jacot inner ring and alarm dial behind substantial bevelled glass .

item

Henri Jacot Petite Sonnerie

 SOLD 

180mm x 90mm x 90mm Here we have a fine quarter chiming or 'petite sonnerie' carriage clock by Henri Jacot . The fine gilded gorge case is substantial. The dial is perfect and free of any chips or hairlines. The movement strikes the hours and quarters with the addition of push repeat and alarm. The clock has the Jacot stamp on the back plate and the Jacot signatures on the reverse of the dial. The clock, the outer case and key are all numbered 4613. To find a petite sonnerie by Henri Jacot with original Key and Case is quite rare. A wonderful clock. 12 month guarantee

item

Carriage Clock by Henri Jacot

 £1,950.00 

17 x 9 x 8cm A very slim, tall carriage clock with push repeat on demand and striking on a soft gong. This model, a variation on the 'Corniche' case but much higher quality with bevelled 'sight' to the dial and multi piece base. The classic Henri Jacot dial displaying the inner ring and outer minutes. The original hands, the original escapement, in fact a very good example of the classic Jacot carriage clock with number 4217 and the HJ parrot stamp to the back plate. If you only ever buy one carriage clock, this would be a great choice.

item

Henri Jacot Grande Sonnerie Bells

 SOLD 

18 x 10 x 9cm A fine 'Grande Sonnerie' carriage clock in a gilt gorge case with a white enamel dial and unusually signed Henri Jacot , Paris . This clock has been fully restored , serviced and regulated . Grande Sonnerie striking , Petite Sonnerie and fully Silent if you wish . A very good , large gorge case which feels reassuringly heavy and thick bevelled glass panels to all sides . This clock also features an alarm with a selection lever to the base . Circa 1880

item

Henri Jacot, repeat, alarm & case

 SOLD 

A very well presented Henri Jacot carriage clock in a gilded gorge case. This striking and repeating carriage clock benefits from retaining the original silvered, Jeweled lever escapement which is visible through the large bevelled top glass . A white enamel dial with Roman numerals typical Jacot inner ring and alarm dial behind substantial bevelled glass . The clock also benefits from having an alarm function . H.Jacot is one of the most collectable makers of carriage clocks and this is a very good example with the stamped Jacot logo and number 14803 and key with outer leather covered case - also numbered. Circa 1895 . Please see the more detailed photos.

item

Henry Matthews . 1901

 SOLD 

10cm x 4.5cm x 5.5cm A fine small carriage timepiece by well known silversmiths Henry Matthews who were working from Vittoria street in Birmingham circa 1896-1909 and this clock has all the hallmarks for 1901 . A classic hammered , solid silver with 'C' scroll folding handle and little bun feet . Sold fully overhauled with a 12 month guarantee .

item

Grohe, London

 SOLD 

14 x 8 x 7cm A fine and gorge case carriage clock in very original condition,with a large top glass to view the original Bi-metallic , split , lever platform escapement. The fully serviced 7 day movement is Bell striking on the Hour and once on the half hours the movement is completely original and working perfectly.

item

Goldsmiths Company

 SOLD 

A fine and rather unusual, faux bamboo carriage clock. With gong strike on the hour and push repeat. The original enamelled dial with painted Roman numerals and signed by the retailer Goldsmiths Company based at 112 Regent Street, London and Paris circa 1869 - 1881. The movement and case is completely original and serviced , cleaned and polished and sold with a full 12 month guarantee.

item

Goliath 'Carriage style' clock

 £1950.00 

24.5 x 14 x 11.5cm A fine quality 'Goliath' carriage clock or mantel clock . In a beautiful satin gilt case with bevelled glass to all sides for viewing the 8 day movement . The silvered dial with Roman numerals and fine Breguet style hands . Stamped to the back plate 1712 . This clock has a soft gong strike for the hours and half hour . Viewing of this clock is recommended as you cannot truly appreciate the size 'online' . Sold with a full 12 month guarantee .

item

Charles Vincenti, Giant Carriage

 £8,250.00 

A fine and exceptionally large carriage clock by the well respected maker Charles Vincenti of Paris. The back plate is stamped C.V. and numbered. Vincenti was a superb maker and produced clocks for several of the large and prestigious London retailers of the late Victorian period. This giant carriage clock is shown here unrestored. It is remarkable and giant in every way, although it does have a soft/mellow gong strike. When ready, this rare clock will be sold with a 24 month guarantee (U.K)

item

Kleiser and Co , York

 £1,250.00 

18 x 10 x 9cm An unusual 'gadrooned pagoda' Gorge shape carriage clock by Kleiser of York . Andrew and Joseph Kleiser of York are listed in 'Watch and clockmakers of the world' Vol2 by B.Loomes as working from 1866-1885 .

item

Elizabeth of Glamis Charles Frodsham

 SOLD 

9 x 7.5 x 5cm A small Carriage clock in the 'Hump back' design made from solid silver to commemorate the 80th Birthday of the Queen Mother , only 800 were made and this one is numbered 205 .

item

Henry Marc.

 SOLD 

A fine and early carriage clock made by Henry Marc with the original outer leather case . The clock is in very original condition and still retaining the original 'Jules' type escapement with a helical hairspring as found on marine chronometers . Bell striking on the hour .

item

Pendule d'Officier

 £2,950.00 

A fine gilt Pendule d'Officier Clock with a superb 8 day duration movement on a jeweled lever escapement. The convex enamelled dial showing black Arabic numerals with minutes to the outer edge and quarter markers , decorated with finely chased , pierced and gilded hands

item

Drocourt - Grande Sonnerie Calendar Alarm

 £5,450.00 

17 x 9.5 x 8.5cm A fine and large 'Grande Sonnerie' carriage clock in a gilt gorge case with a white enamel dial showing 3 sub dials. The first days of the week, middle alarm, and third calendar. Classic 'moon' hands, fine Roman numerals and outer minutes . Push repeat and striking on two tuned bells. The clock is stamped 4840 which can be attributed to Drocourt and their numbering system. This fine and quite rare clock also retains the original large silvered platform and jeweled lever escapement which is also number stamped and the classic Drocourt pattern. Grande sonnerie striking or petite sonnerie and fully silent if you wish. The push repeat button to repeat the last hour and quarter. Thick perfect bevelled glass panels to all sides and with a chime selection lever to the base. Circa 1860-70. Drocourt has achieved worldwide recognition with their quality workman ship and complicated movements. Pierre & Alfred Drocourt were France' leading makers from the middle of the 19th century through to the late Victorian era. They had a factory in Saint-Nicolas-d'Ailermont, which was regarded as the most important town for carriage clock manufacturing. The majority of their clocks would go to their Paris premises and dispersed amongst the world's top retailers of that time. They exhibited at the major exhibitions winning a bronze medal at Paris 1867, the Silver at Paris 1878 and the gold at Paris in 1889. The son, Alfred, succeeded his father Pierre sometime in the 1870's. The outer leather covered case it is supplied with is not the original but is a perfect fit and contemporary to the clock. 24 month R.T.B Guarantee

item

Drocourt No 8019

 SOLD 

This fine carriage clock by Alfred and Pierre Drocourt is in remarkably original condition and retains its distressed outer case.

item

Drocourt Giant Carriage Clock

 £8,600.00 

255mm x 150mm x 115mm An exceptionally large or 'Giant' carriage clock by the well known maker Drocourt. The back plate is stamped and numbered. Alfred and Pierre Drocourt were both superb clockmakers, they had a factory in Saint-Nicolas-d'Ailermont, which was regarded as the most important town for carriage clock manufacturing. The majority of their clocks would go to their Paris premises and dispersed amongst the world's top retailers of that time. They exhibited at the major exhibitions winning a bronze medal at Paris 1867, the Silver at Paris 1878 and the gold at Paris in 1889. The son, Alfred, succeeded his father Pierre sometime in the 1870's. It has a soft/mellow gong strike and repeat. When ready, this rare clock will be sold with a 24 month U.K. guarantee

item

Dixon et Fils a Paris , Raingo .

 £2,650.00 

17 x 10 x 8cm A fine and early carriage clock . One similar to this now sits in our SOLD section . The case is constructed as ' multi-piece' case with solid rear door and early handle design . The original and unusual jewelled lever , platform escapement is superb .

item

Deco style with Alarm

 SOLD 

14 x 8 x 7cm In all the years we have been buying Carriage clocks we have never seen another one of this type of carriage clock . It is a very stylish timepiece with the added feature of an alarm . The case is nickel on brass and looks original with a nice patina , the dial is silvered and has 'deco' arabic numerals , the rear door is solid and the glasses to all sides are perfect .

item

Striking Carriage Clock

 £1,450.00 

A good example of a 'Corniche' carriage clock with strike on a gong . The clock retains the original silvered jewelled lever escapement and strikes on a gong for the hours and the half hours . The white enamelled dial with Roman numerals and the original very fine Breguet type hands . Circa 1890 . The case is 'Satin' gilt and looks bright but 'soft' on the eye . 12 month R.T.B Guarantee

item

Carriage Clock, Original Case

 SOLD 

18 x 10 x 9cm An early oversize carriage clock with a one piece case in original condition. with the Leather carry-case it would have been sold with . This clock although not signed is numbered 8903 . It has the large top glass to view the important original,off set lever ,bi-metallic balance escapement.

item

Engraved Gorge Canalee

 SOLD 

This fine engraved 'Cannelee' case carriage clock is in very original condition with a white enamel dial showing Roman numerals an oval top glass to view the bi-metallic, jeweled lever escapement . Push repeat and gong striking on the Hour with one gong for the half hour. The hand engraved case is skillfully executed and the movement has been serviced , cleaned and polished and is sold with a full 12 month guarantee . The dial showing Roman numerals and Arabic numerals for the alarm . Blued steel hands . Push repeat , Circa 1880 .

item

Calendar , alarm & push repeat

 £3650.00 

A fine and rare calendar dial carriage clock in an engraved gilt gorge case. The clock is in very original condition with a white enamel dial showing two lower sub' dials , one for the calendar and one for the alarm , top glass to view the original Bi-metallic, jeweled lever escapement . Push repeat and bell striking on the Hour and half hour . The movement is completely original and serviced , polished and sold with a full 12 month guarantee . The dial showing Roman numerals with the blued steel Breguet hands . Push repeat , Circa 1870-80 .

item

Silver Carriage Timepiece, JTC

 £1,450.00 

A very attractive, polished solid silver, petite timepiece made in 1913 with Hallmarks for Charles Guignard a London Silversmith and importer of clocks and watches from France and Switzerland. Stamped to the movement JTC for the Geneva Watch Co and numbered 56229 who were fine makers and produced a range of exquisite clocks, watches and timepieces. Sold with a full 12 month R.T.B Guarantee.

item

Buzot a Paris, Pendule d'Officier

 SOLD 

22 x 13 x 9cm A very fine Pendule d'Officier . The convex enamelled dial showing black Arabic numerals with minutes to the outer edge and gilt quarter markers , decorated with finely chased , pierced and gilded hands , signed to the dial Buzot a Paris who is recorded in G.H.Baillie's - Watch and Clockmakers of the World. The case having floral and ribbon gilt mounts in the classic 'Pagoda' shape . The drop handle with a Serpent consuming itself - an ancient symbol of eternal unity. Standing on four turned feet . Circa 1890.

item

Bourdin Duplex

 SOLD 

It's not often we are surprised by a clock but this Bourdin Carriage clock has done just that. The reason for this is the strike. The strike for the hour is on Bell and the strike for the half hour on a Gong, ingenious ! thus solving the problem of the 12.30 , 1 & 1.30 strike if you are not looking at the clock just listening.

item

Grande Sonnerie Asprey - Jacot

 SOLD 

A fine 'Grande Sonnerie' carriage clock in a gilt gorge case with a white enamel dial signed Asprey, London. This is the only Asprey 'Grande Sonnerie' we have had. The movement is stamped with the Jacot numbers 1987 and the Oval stamps. This clock has been carefully restored, serviced and regulated. Grande sonnerie striking, Petite sonnerie and fully silent if you wish . A very good large gorge case which feels reassuringly heavy with thick bevelled glass panels to all sides. This clock also features an alarm with a selection lever to the base . Circa 1880 .

item

Aird and Thomson Glasgow

 SOLD 

17.5 x 9.5 x 8cm A well proportioned Carriage clock in very original condition with its numbered Key and Leather case. A large bevelled top glass to view the original Bi-metallic , jeweled lever escapement , striking on the Hour and half hour on a mellow gong .

item

A. Barrie Carriage Clock

 2650 

A fine and very original carriage clock with its original outer case covered in 'Moroccan leather' and retains its handle. The proportions of the clock are a little larger than average, with all original bevelled glass and key. The original gilding has been restored and the movement fully overhauled. A. Barrie of Princess Street, Edinburgh was a prestigious jeweler retailer of clocks. This clock would have been sold by them circa 1880.

item

A.Demeur , Push repeat , Alarm .

 SOLD 

A fine early carriage clock made by A.Demeur who was the Horologer to the King of France circa 1830 (Charles X , 1824-1830) . Bell striking on the hour with an alarm . The movement is completely original and serviced .

Website by Antenna