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Byzantine portable universal altitude sundial with geared calendrical device
Brass components from Byzantine portable universal altitude sundial with geared calendrical device, unsigned, Middle East, 401-600
Caesium atomic clock, 1955.
NPL caesium atomic clock of 1955 (less associated electronic equipment)
Early Persian brass sundial compass
Early Persian brass sundial compass (compass needle missing)
Early pendulum clock by Salomon Coster, c.1657.
"Haagsche Klokje" by Salomon Coster (1657-59)
Cristalonic Solar-Quartz Wrist Watch, 1960-1976
Cristalonic Solar quartz time computer, 1960-1976
"Shepherd's" pocket column sundial
Wooden "Shepherd's" pocket column Sundial
Cast of a Saxon Sundial, original at Kirkdale Church, Yorkshire
1935-1958 (reproduction); 1055-1064 CE (original)
Plaster cast of the Saxon sundial on Kirkdale Church, Yorks, originally made 1055-1064 CE, reproduction cast made 1935-1958. It marks the daylight period into four equal periods, using a horizontal gnomon which is now missing.
Clock used for transit of Venus observations, 1769
Regulator clock by John Shelton with glazed mahogany case. One of five such clocks sent with Royal Society expeditions to observe the Transit of Venus on the 3rd June 1769.
Chronometer watch in silver case by John Arnold an
Chronometer watch in silver case by John Arnold and Son, London, no.360/661, case. Hall marked 1788
Sterling silver level pocket watch
Sterling silver lever pocket watch, made by Thomas & John Ollivant, Manchester, around 1851.
Kundo 'Space Timer' radio-controlled quartz desk clock, 1988.
Kundo Space Timer Clock, synchronised to the 77.5 kHz time signals from the DCF 77 radio transmitter at Mainflingen, near Frankfurt, Germany, made by Kieninger und Obergfell GmbH, St Georgen/Schw, Germany, in 1988.
Lantern clock with verge escapement and rach and s
Lantern clock with verge escapement and rach and snail escapement (bob pendulum missing); hours on dial divided into quarters; going and striking trains; one hand
Barograph clock by Alexander Cumming, 1766
Barograph Clock by Alexander Cumming, 1766. From 1814 onwards, this clock was used by the famed meteorologist Luke Howard to make systematic observations that are among the world’s first urban climate studies. It incorporates a mercury barograph mechanism for measuring changes in air pressure, which are recorded on the circular paper chart around the outside of the dial. The clock had been made in 1766 by the noted London clockmaker Alexander Cumming, three years after he completed a similar device for King George III, a prominent patron of science. Two tubes of mercury are concealed in the fluted wooden columns visible inside the glass trunk door. An ivory cistern and a wood and ivory pen cage run in ivory rollers connecting the pressure-measuring mechanism to the recording dial. The clock is housed in an exuberant carved mahogany case believed to be by the esteemed cabinet-maker Thomas Chippendale.
Cylinder watch in silver pair case by Ellicott, Lo
Cylinder watch in silver pair case by Ellicott, London, no.7778, hall marked 1773
Chronometer watch by Thomas Earnshaw No.498, with
Chronometer watch by Thomas Earnshaw No.498, with later barrel cover numbered 2829, balance cock and regulator. In 18 ct. gold case hallmarked 1807/8
Column dial by Henry Robert, Horloger, au Palais R
Column dial by Henry Robert, Horloger, au Palais Royal, paper on wood, early 19th century
Model of a Television Set Tammeter, 1955-1965
Small external model of a TV set with Tammeter mounted above, made by Television Audience Management Limited, London, England, 1955-1965
Empire type world clock for indicating time around the globe
'Empire' type world clock for indicating the time around the globe at various longitudes with accessories, unknown maker, France, 1909. Patented by Etienne de Gounevitch and Armand Gustave Couailett (British patent No. 23, 449, 1909).
'Merkhet', Ancient Egyptian astronomical timekeeping instrument, bronze with hieroglyphic text inlaid with electrum metal, fitted with replica plumb bob, 600BCE. Inscription indicates it was the property of Bes, son of Khonsirtis (Khensardais var.), an astronomer priest of the god, Horus of Edfu in Upper Egypt. Used to layout axes of buildings and to determine the hours of the night by observing the passage of selected stars across the north-south meridian.
Cylinder watch in pinchbeck inner case, tortoisesh
Cylinder watch in pinchbeck inner case, tortoiseshell (damaged) outer case by John Holmes, Strand, London, no.6808
Clock dial marked 'Potter, Railway Time', 1840-1880
Clock dial marked "Potter, Railway Time" with two hands, unknown maker, British, 1840-1880
"Ingersoll" wrist watch
"Ingersoll" wrist watch with leather strap, pin pallet escapement and luminous hour hand, 1915
Japanese Lantern Clock, Unsigned, 1801-1900
Japanese lantern clock, with iron movement, fixed dial and rotating hour indicator, 1801-1900
Verge watch in silver inner case, shagreen outer c
Verge watch in silver inner case, shagreen outer case by Jas Shearwood, London, no.3028, silver dial, calendar. Hall marked 1759 (damaged)
Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897
Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", made by Hunt and Roskell Limited, Clerkenwell, London, England, 1843-1897. The face of the instrument reads: 'This needle is deflected precisely at each hour, Hunt & Roskell Ltd, jewellers and watchmakers'
Double-dial longcase clock from Park Green Mill, Macclesfield, made by E. Hartley, Macclesfield, c. 1810. Includes body and hood.
Casio gents LCD digital watch, black resin case an
Casio gents LCD digital watch, black resin case and strap, in packaging, model F-91W, with alarm, stopwatch, 7-year battery life. 1999.
18-carat gold openface lever pocket watch signed 'VULLIAMY, mxuz LONDON'
18-carat gold openface lever pocket watch signed 'VULLIAMY, mxuz LONDON', with chain and key, hallmarked for London, 1847, with normal minute hand for showing mean time and additional minute hand for local time, and with table inside back of case showing differences from Greenwich time for various cities
Synchronous mains electric clock of the self-start
Synchronous mains electric clock of the self-starting type, with digital display. Made by The Westinghouse Electric Supply Co. USA. Early c.1934's
Harrison's eight-day wooden clock movement, 1715.
Original eight day clock by Harrison, date 1715, wheel work mostly of wood. With correspondence concerning Harrison clocks
Chronometer in Gold Case by Thomas Earnsham, 1795-1810
Gold-cased Chronometer watch no.728 made by Thomas Earnshaw, 1795-1810
Watch with Flamenville dead-beat escapement, signe
Watch with Flamenville dead-beat escapement, signed Josh Harris, London, 120. In silver pair-case with London hallmark for 1759
Bracket timepiece in mahogany case with silvered d
Bracket timepiece in mahogany case with silvered dial signed "Dutton & Co, London, V R 1874". Supplied by C. Sansom, Montpelier Street, Clockmaker to the Department of Science and Art (South Kensington Museums)
Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.
1642-1649 (original); 1883 (model)
Model showing the first idea of the application of the pendulum to the clock designed by Galileo in 1642, made his son Vincenzo in 1649 and illustrated by Vincenzo Viviani, Italy. This model is by Eustachio Porcellotti, Florence, Italy, 1883.
Early Balance Spring Pocket Watch by Thomas Tompion with Regulator Type Dial, 1675-1679
Early balance spring watch by Thomas Tompion with 'Regulator' type dial, in silver case, London, England, 1675-79.
House clock, balance-wheel brass lantern clock
Balance-wheel brass lantern clock, with two driving weights and one counterweight, by Thomas Knifton, Cross Keys, Lothbury, London, England, 1645-1655.
Ashadar or time stick, Northern India, 1895-1905
Tibetan priest's Time-stick from Darjeeling, unsigned, West Bengal, India, 1895-1905. It worked in a simliar way to the column sundial, a wire gnomonwas placed in the hole that corresponded with the month, it was then twisted to align the shadow with the scale.
Starburst LCD Analogue watch by Texas Instruments,
Starburst LCD Analogue watch by Texas Instruments, the first analogue watch without moving parts, introduced in 1978. Transferred from temporary inventory no.TN7
Zeon, Radio-Controlled Analogue Wrist-watch, 1996
Zeon Tech radio-controlled quartz-crystal analogue wristwatch with digital seconds or day-of-week indication on liquid crystal display. Made in 1996, primarily for German market.
Silver altitude sundial in leather case
Altitude sundial, in silver, for latitude 51°30 secs. (London), signed Humfray Colle, in original tooled leather case, by Humfrey Cole, London, England, 1568-1590. Gallery label, 2000: 77
Nocturnal and sundial
Nocturnal and sundial, brass, French, 3 1/2in. diameter (damaged)
Seiko 'Kinetic Auto Relay' Wrist Watch, 2000
Seiko 'Kinetic Auto Relay' wrist watch, quartz watch with analogue display, powered by electricity generated by the movement of the wrist. Model SMA025, made in Japan, 2000.
Willis world clock, 1929-1935
Example of the Willis world clock, with winding key (for showing local time in any part of the world), patented by John Henry Willis in 1929, made by J. H. Willis and Company, Norwich, England, 1929-1935.
Cylinder repeater pocket watch in case, by Eardley Norton
Repeater in silver case by Eardley Norton, London, no.2143 going barrel, cylinder (inner case only ?), 1770-1794, donated byt Evan Roberts in 1916
Sinclair 'Black Watch' with LED display
Quartz watch with LED display, Sinclair 'Black Watch, with attached control unit, step-down transformer and display stand, and watch kit by Sinclair Radionics Limited, St Ives, Cambridgeshire, England, 1975-1976. Plastic case and batteries missing.
Two-thirds scale copy of the Hampton court astronomical clock dials, with epicyclic gearing unit, outer fixed chapter ring and rotating astronomical dial
Two-thirds scale copy of the Hampton court astronomical clock dials, with epicyclic gearing unit, outer fixed chapter ring and rotating astronomical dial. (With synchronous driving motor, gear-box and clutch unit supplied through Ministry of Public Building and Works)