Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Brass gear wheel from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.

Caesium atomic clock, 1955.

Time Measurement

1955

Caesium atomic clock made by Louis Essen and J.V.L. Parry at the National Physical Laboratory, Teddington, London, 1955.

Compendium by Augustine Ryther

Time Measurement

1588

Compendium comprised of universal equinoctial sundial, compass and calendar made by Augustine Ryther in 1588. Signed 'A Ryther * Fecit * 1588" and incribed "WILLIAM PAWLEY OWETH THIS SAME IN ANNO DOMINI 1588".

Barograph clock by Alexander Cumming

Time Measurement

1766

Barograph clock made by Alexander Cumming (1731 or 1732-1814), London, England, 1766. It consists of a compensated pendulum regulator clock and a mercury barograph mechanism for measuring changes in air pressure, which are recorded on the circular paper chart around the outside of the dial. 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. Originally used by Cumming himself, the barograph clock was purchased in around 1814 and used by manufacturing chemist and meteorologist, Luke Howard (1772-1864).

Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Brass gear wheel and pinion from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.

Clock weight from long-case clock by Fromanteel

Time Measurement

1660-1665

Brass-cased lead clock weight from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665. The outer brass casing is engraved with a coat of arms featuring a shield and crown.

Sand glass in four pillared wooden mount

Time Measurement

1750-1800

Single sand glass in four pillared wooden mount. 17 minutes. Horne Type B. Second half of the 18th century. (B3247)

Compendium by Elias Allen

Time Measurement

1630-1653

Compendium consisting of a sundial, companss and calendar indices made by Elias Allen between 1630 and 1653, near St. Clement's Church close to the Strand, London. Inscribed: "Elias Allen fecit" and outer lid engraved with the royal coat of arms.

Sundial making tool

Time Measurement

1690-1710

Tool for making sundials, unknown maker, France, 1680-1700.

Pocket watch by Thomas Tompion

Time Measurement

1675-1700

Pocket watch with cylinder escapement and tortoiseshell case made by Thomas Tompion, Fleet Street, London, between 1675 and 1700. Inscribed 'T. Tompion London 3' on the movement and inscribed 'Graham' on the dial.

Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897

Time Measurement

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'

Barnard Tompion clock

Time Measurement

1708

Table clock with striking mechanism made by Thomas Tompion and original oak carry case. The movement is signed: ‘Tho: Tompion/Edw: Banger/London’ and numbered 460.

Early balance spring watch by Thomas Tompion

Time Measurement

1675-1679

Early balance spring pocket watch in silver case made by Thomas Tompion, Fleet Street, London, England, 1675-79. The watch features an unusual dial showing minutes on the main dial and two subsidiary dials for the hours (in the upper position) and seconds (in the lower position). The subsidiary dial for hours indicates up to six hours in each cycle.

Electric time recorder

Time Measurement

1930

Electric time recorder, made by Gledhill Brook, used in Bay 2 of Mather & Platt Park Works, Manchester, c.1920-90. Serial number 29369.

Table clock by Nicholas Vallin

Time Measurement

1598-1603

Circular table-clock with calendrical and lunar indications made by Nicholas Vallin in London between 1598 and 1603.

Model of a Television Set Tammeter, 1955-1965

Time Measurement

1955-1965

Small external model of a TV set with Tammeter mounted above, made by Television Audience Management Limited, London, England, 1955-1965

Escape wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Brass anchor escape wheel from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665..

Wells Cathedral clock, 1392

Time Measurement

1392

Wells Cathedral clock, England, 1392

Masterpiece clock from Augsburg, Germany, 1625-1635

Time Measurement

1625-1635

Upright table clock, by unknown maker, made in Augsburg, Germany, 1625-1635

Clock dial marked 'Potter, Railway Time', 1840-1880

Time Measurement

1840-1880

Clock dial marked "Potter, Railway Time" with two hands, unknown maker, British, 1840-1880

Empire type world clock for indicating time around the globe

Time Measurement

1909

'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), with brass winding key.

Clock movement for Shelton regulator clock

Time Measurement

1768-1769

Movement for regulator clock with dead beat escapement, inverted grid iron pendulum with steel knife edge pivot on an agate plate and bubble level. Originally made by John Shelton, Shoe Lane, London, 1768-9, with later modifications.

Sun-and-moon dial by Elias Allen

Time Measurement

1607-1653

Sun-and-moon dial made by Elias Allen between 1607 and 1653 at his workshop, near St. Clement's Church, London. Engraved "Elias Allen fecit a Moone diall". It is callibrated for use at the latitude 51 1/2.

Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement

Time Measurement

1705-1737

Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement, made by Will Kipling, London, 1705-1737. Movement inscribed 'Will Kipling no.483'. The movement consists of silver pillars (jewelled endstone removed).

Marine chronometer by John Arnold and Son, 1787-1799

Time Measurement

1787-1799

Two-day marine chronometer (No 63) by John Arnold and Son, Cornhill, London, 1787-1799.

Silver sundial by Hunfrey Cole

Time Measurement

1568-1590

Silver altitude sundial made and signed by Humfray Cole, London, 1568-1590. It was made for use in latitude 51°30 secs, in which London is located,

Pulley from long-case clock by Fromanteel

Time Measurement

1660-1665

Pulley from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.

Horizontal sundial in bronze

Time Measurement

1551

Horizontal sundial, by assumed to have been made by Thomas Gemini, 1551, with initials W.B. which possibly refers to William Buckley.

"Ingersoll" wrist watch with leather strap

Time Measurement

1915

"Ingersoll" wrist watch with leather strap, pin pallet escapement and luminous hour hand, 1915

Sand-glass

Time Measurement

Single sand-glass in four pillared wooden mount. Horne Type B. Second half of the 18th century. (B3243)

Clock (French) symbolising motive power

Time Measurement

Clock (French) symbolising motive power, gilt bronze finish, 19th C. B 1987 with two keys.

Lantern clock with verge escapement and rach and snail escapement

Time Measurement

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

Sand-glass

Time Measurement

Single sand-glass in five pillared wooden mount. 69 minutes. Horne Type B. Second half of the 18th century. (B3184)

Equinoctial ring sundial

Time Measurement

1719-1791

Universal equinoctial ring sundial signed "J Gilbert Tower Hill London". English, second half of the 18th century. (B1698)

Chronometer in Gold Case by Thomas Earnsham, 1795-1810

Time Measurement

1795-1810

Gold-cased Chronometer watch no.728 made by Thomas Earnshaw, 1795-1810

Cylinder watch in pinchbeck inner case

Time Measurement

Cylinder watch in pinchbeck inner case, tortoiseshell (damaged) outer case by John Holmes, Strand, London, no.6808

Bracket timepiece in mahogany case with silvered dial

Time Measurement

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)

Casio gents LCD digital watch

Time Measurement

1999

Casio gents LCD digital watch, black resin case and strap, in packaging, model F-91W, with alarm, stopwatch, 7-year battery life. 1999.

Gold verge watch with fusee

Time Measurement

Verge watch with fusee, in engine turned enamelled gold hunter case decorated with split pearls. French mid 18th century. (B4420)

Chronometer watch in silver case by John Arnold and Son

Time Measurement

hallmarked 1788

Chronometer watch in silver case by John Arnold and Son, London, no.360/661, case. Hall marked 1788

Cylinder watch in silver pair case by Ellicott

Time Measurement

Cylinder watch in silver pair case by Ellicott, London, no.7778, hall marked 1773

Synchronous mains electric clock of the self-starting type

Time Measurement

1934

Synchronous mains electric clock of the self-starting type, with digital display. Made by The Westinghouse Electric Supply Co. USA. Early c.1934's

Watch with Flamenville dead-beat escapement

Time Measurement

Watch with Flamenville dead-beat escapement, signed Josh Harris, London, 120. In silver pair-case with London hallmark for 1759

Sand-glass

Time Measurement

Single sand-glass in four pillared wooden mount. 55 seconds. Horne Type B. Second half of the 18th century. ?Ship's log glass. (B3244)

Cubical polyhedral sundial

Time Measurement

1751-1800

German universal cubical sundial in wood with paper scales, signed D. Beringer, compass needle and cover glass missing, c.1780

Chronometer watch by Thomas Earnshaw No.498

Time Measurement

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

Bezel wind wrist watch, c.1880

Time Measurement

circa 1880

Bezel wind wrist watch, c.1880

Case for Shelton regulator clock

Time Measurement

1882

Replacement glazed mahogany case for Shelton regulator clock with mounting bracket and grid iron pendulum. Made by the United States Coastal and Geodetic Survey in 1882.

Sand-glass

Time Measurement

Single sand-glass in five pillared wooden mount. 15 minutes (average). Horne Type B. Second half of the 18th century. (B3192)

Column dial by Henry Robert

Time Measurement

1831-1870

Column dial by Henry Robert, Horloger, au Palais Royal, paper on wood, early 19th century