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Set of Napier's rods in boxwood case, made in England by an unknown maker, about 1690.
Islamic planispheric astrolabe in brass, diameter 25 cm, with rete, two plates, alidade, alidade, pin and horse, made by Jamal al-Din ibn Muquin, at Lahore, Pakistan, in 1077 AH (= 1666-7 CE). Inside of mater shows map locating Mecca with qibla of 17 locations. Zoomorphic characters on rete.
Robert Hooke type microscope
Compound microscope designed by Robert Hooke, 1671-1700 and thought to have been made by Christopher Cock, Long Acre, Covent Garden, London, but not signed. Part of an accessory for manipulating specimens has survived and the objective lens is a modern replacement made in 1965.
Isaac Newton’s reflecting telescope (replica)
Replica of Newton's first reflecting telescope made in 1668 and now in the possession of the Royal Society of London. Made for the Science Museum in 1924 by Mr F.L. Agate
Early balance spring watch by Thomas Tompion
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.
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.
Pocket watch by Thomas Tompion
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.
Slide rule by Robert Bissaker
Slide rule made by Robert Bissaker in 1654, Radcliffe (now Wapping), London. Signed 'Robert Bissaker 1654 For T W'. It is the earliest-known dated straight slide rule.
Whole model, full rigged, of ship of the line, H.M.S. 'Prince'
Contemporary whole rigged (rigged in Museum) model, scale 1:48, of English 1st rate ship of the line of 100/90 guns HMS 'Prince' (1670), showing hull construction method, designed by Peter Pett and made by Chatham Dockyard,
Spring clock in ebony case by Samuel Knibb
Spring table clock by Samuel Knibb in an ebony veneered oak case. The dial is 9 1/4 inch square, and engraved with spring flowers. 8-day fusee movement with verge escapement and short pendulum. Hour and half-hour count-wheel striking. Latched plates. Sparse engraving on backplate. Signed ‘Samuel Knibb Londini fecit.’ Westminster, c.1666.
wheel cutting machine
Hand and Machine Tools
Early clock-wheel cutting machine made by Humphrey Marsh, England, 1668-1672.
Horary quadrant by Henry Sutton
Horary quadrant made by Henry Sutton, Threadneedle Street, London, 1658. Paper scale on brass with lead plumb bob
Magnetic compass and sundial by Henry Sutton
Folding pocket compass and sundial in boxwood case made by Henry Sutton, Threadneedle Street, London, 1650-1665.
Cylindrical form of Napier's bones
Original Napier's Rods, cylindrical arrangement in wooden box with ten figured rollers; inside lid inscribed "This box was the identical property of the author of ye Logs, Napier 1824" (wire, hingeing lid to box, broken) from the library of the Lord Napier and Ettrick
Seven almost identical unfinished watch movements
Seven unfinished watch movements, representing unique evidence of quantity production in the 17th century. They are complete and almost identical, although individual parts are not interchangeable. Found in the chest of the Worshipful Company of Clockmakers (object number L2015-3615) in 1814.
Silver and tortoiseshell watch pair-cased watch with differential dial by John Ferrers
Silver and tortoiseshell pair-cased watch by John Ferrers c.1695. The outer case is covered in tortoiseshell and decorared with silver pins and disks. The inner case is of plain silver. The silver champlevé dial has a minute band around the outer edge, and a central rotating disc displaying the hours, marked I-XII. Between the minutes and the hour disc is a band with a repoussé trophy of arms and name plaque below, signed 'Ferrers, London'. Single steel hand. Movement with verge escapement, and signed on the backplate ‘Jno. Ferrers London’.
Silver star-shaped verge watch by David Ramsay
A verge escapement watch by David Ramsay, with an engraved silver case in the shape of a six-pointed star. The engraved dial is signed ‘de Heck Sculp'. The fusee movement has a pinned-on balance cock and ratchet wheel set-up. Signed ‘David Ramsay, Scotus me fecit’ c.1625
Eight-day longcase clock by Edward East in a later marquetry case
Anchor escapement, eight-day, striking longcase by Edward East London. The oak case, veneered in walnut and floral marquetry, has been altered to fit the movement, which is earlier. The 9¼-inch brass dial has a narrow silvered hour circle with minute figures at every 5, engraved spandrels, and is signed 'Edwardus East Londini'. The two-train movement has count-wheel striking and bolt-and-shutter maintaining power. The movement dates to around 1675 and the case c.1685.
Clock weight from long-case clock by Fromanteel
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.
Telescope by Christopher Cock
Refracting five-draw telescope made by Christopher Cock, Long Acre, London, 1673. Inscribed ‘Christopher Cock Londini 1673’. The tube is decorated in gold designs on red vellum and features a royal coat of arms.
Masterpiece clock from Augsburg, Germany, 1625-1635
Upright table clock, by unknown maker, made in Augsburg, Germany, 1625-1635
Gunter sector signed Elias Allen
Brass Gunter sector made by Elias Allen in 1623, near St Clement's Church (without Temple Bar), London. It is signed 'Elias Allen fecit 1623.'
Pre-balance-spring era watch movement by Thomas Tompion c.1671
Pre-balance-spring era watch movement by Thomas Tompion, with a long screwed-on balance cock and worm-and-wheel set-up. A high quality fusee movement, with no pinion having less than 6 leaves. Signed 'Thomas Tompion, London' in flowing script c.1671
Longcase clock movement by Thomas Bradford
Longcase clock movement by Thomas Bradford, London 8-day movement with latched plates and five pillars, anchor escapement and inside count-wheel striking. The 11-inch brass dial has cherub spandrels, applied chapter and seconds rings and date-work. c.1692
Watch with faceted oval rock crystal case and protective outer case by John Ramsay
Verge escapement watch with faceted oval rock crystal case and protective outer case by John Ramsay, c.1625. The protective outer case is of gilt metal. The watch's main case is made from three pieces of rock crystal; two cut into facets to form the covers, and the third carved to form the body of the case. The crystal pieces are set in a gilt-metal frame enamelled in white and green. The dial is made from cloisonné white enamel with flowers, with a gold chapter ring and a blued steel hand. The movement has a verge escapement, a train of three wheels, a screwed-on balance cock and worm and wheel set-up. The movement is signed 'John Ramsay fecit'.
Pulley from long-case clock by Fromanteel
Pulley from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.
Rock crystal and silver watch in the form of a tulip, by Sermand c.1640
Form watch by Sermand, France or Switzerland. c.1640. Silver case cast in the form of a tulip with three hinged petals, each petal having a carved rock crystal window. Engraved gilt dial plate with a large silver chapter ring, with floral engraving around the outside of the ring, and an engraved scene of a river, bridge and houses in the centre. Steel hour hand with long tail. Verge escapement, with steel two arm balance, Pinned-on, pierced and engraved, oval shaped balance cock. Three wheel train. Fusee with gut line. Gilt backplate signed ‘F. Sermand’.
Model of early manual fire engine, ca. 1680.
Model of early manual fire engine, ca. 1680.
Gear wheel from long-case clock by Fromanteel
Brass gear wheel from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.
Gilt-metal and engraved silver verge watch by James Valtrolier
Verge escapement watch by James Vautrolier. The oval gilt-metal case has profusely engraved silver covers and band. The engraved silver dial has a gilt hand. The movement has a three wheel train, pinned on balance cock and ratchet wheel set-up. The backplate has an engraved border. With original brass key and plain silver outer case. London c.1625
Combined graphometer and plummet clinometer, 1663.
Combined graphometer and plummet clinometer by Christoff Kohler of Dresden, 1663
Gear wheel from long-case clock by Fromanteel
Brass gear wheel and pinion from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665.
Morland's calculating machine, engraved "Samuel Morland, Inventor, 1666"
Morland's calculating machine, engraved "Samuel Morland, Inventor, 1666"; in leather box Humphrey Adamson, mathemtical instrument maker active 1668-1676, made the calculating machine invented by Samuel Morland.
Compendium by Elias Allen
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.
Silver form watch, in the shape of a cockle shell by Richard Masterson, c.1630
Form watch by Richard Masterson, The Royal Exchange, London c.1630. Oval case made of silver, cast in the form of a cockle-shell, with raised ridges on both sides of the case, radiating from the case joint. Shutter for winding hole, made of plain silver. Plain silver dial with small engraved hour circle and steel hour hand. Verge escapement, with steel two arm balance. Pinned-on, pierced and engraved balance cock. Ratchet wheel set-up for mainspring. Three wheel train. Fusee with gut-line. Back plate with engraved border, and signed ‘Ri Masterson at the Exchange Fecit’.
Telescope by John Marshall
Refracting seven-draw telescope made by John Marshall, Ludgate Street, London, 1685-1695.
Escape wheel from long-case clock by Fromanteel
Brass anchor escape wheel from long-case clock made by Ahasuerus Fromanteel, London, 1660-1665..
Verge watch by Peter Debaufre with later modification by Alexander Cumming, London
Verge escapement watch with pirouette by Peter Debaufre, in a silver case with small aperture to show balance. Outer case missing. The silver dial has raised figures with blued steel beetle and poker hands and a subsidiary seconds dial with decorative pierced hand. The movement has a stop piece engaging with the contrate wheel, and the balance cock has a rim with two thin arms to show the pirouette balance which has a spring with 4 turns. A 'pirouette' is a device in which the balance is not on the same axis as the verge, but on a separate arbor and geared to the verge, so that it turns more rapidly. In this case a wheel of 60 teeth on the verge-staff gears with a pinion of 6 leaves on the balance-staff which thus has an arc of about 2½ turns. Signed 'Peter Debaufre London' (Peter is under the foot of the cock). C. 1700.
Oval crystal-cased verge watch with outer case and ribbon with miniature and locket by A Senebier
Crystal oval shaped watch by A. Senebier, with a protective outer case covered in shark-skin, and a ribbon with an enamel miniature of Charles I attached. On the reverse of the portrait, between a skull and a crown, is the date of his execution ‘C.R. Jan. 30. 1648’. Also attached to the ribbon is a lock of hair contained inside a crystal locket, and a gold charm in the shape of a lyre. The faceted crystal of the watch case is set in an engraved gilt-metal rim. The gilt dial is engraved with flowers, with the chapter ring applied as a silver disc, with an engraved lake scene in the centre. The fusee movement has a three-wheel train and ratchet wheel set-up. The balance cock was originally pinned-on. Geneva c.1630
Black and white enamel verge watch by Goullons, Paris
A gold verge escapement watch with a black and white enamel case by Goullons, Paris c.1650. The white dial is similarly decorated with enamel in its centre. The movement has a three wheel train, a worm-and-wheel set-up and a balance cock nearly covering the entire balance.
Travelling 'coach' watch by Edward East
Verge escapement travelling coach watch movement, with striking and alarm by Edward East, London Gilt dial plate with engraved border and silver hour ring. Large alarm disc covered with flowers and foliage. Oval pierced balance cock, screwed to the plate. Silver count wheel. Chain and fusee. Four wheel train. Signed ‘Eduardus East, London’. Mid-17th century.
Lantern clock by Francis Forman
A lantern, or house clock of twelve hours duration with (replaced) balance escapement. Mannerist frame. The dial engraved with naïve floral pattern and grotesque mask. Characteristic reversed ‘X’s from nine to twelve o’clock. The frets bear the mark of the brass founder ‘I.S.’ or ‘S.I.’. Signed ‘Francis Foreman at St. Paules gate’. London, c.1630.
Replica of Torricelli's first barometer, 1643.
Replica, Torricelli's first closed cistern barometer, Rome, Italy, 1643
Hand brand, for use on felons or deserters, England, 1642-1649
Hand brand, for use on felons or deserters, used by British army, unsigned, English, 1642-1649
print. engraving and etching. CAROLVS II. SOCIETATIS REGALIS AVTHOR & PATRONVS - SOCIETATIS PRAESES - ARTIVM INSTAVRATOR Evelyn inv D.D.C.; Wenceslaus Hollar f.1667. [London] [J. Martyn] 1667. [trimmed to] 20x16.5cm. Frontispiece from 4to version of first edition of: History of the Royal Society of London, for the improving of natural knowledge/Thomas Sprat. - London, T.R. for J. Martyn, 1667. The frontispiece consisting of the arms of the Royal Society appeared in editions of 1667, 1702 and 1722, but was omitted from the fourth edition of 1734. This second frontispiece appeared only in the larger impressions of the first edition of 1667. Portraits; Bust of Charles II, patron of the Royal Society, upon an inscribed pedestal and crowned by the figure of Fame. Supported to l. by Viscount Brouncker, first President of the Society; to r. by Sir Francis Bacon, instigator of concept of a society of scientists and philosophers in The New Atlantis. Above, the coat of arms of the Society. In gallery setting, opening to world beyond, amid books and various scientific Instruments. Charles II, King of Great Britain 1630-1685. Bacon, Francis. Hollar, Wenceslaus 1607-1677.
Watch movement with a quarter-repeating mechanism of early design by Thomas Tompion.
Watch movement with a quarter repeating mechanism of early design, by Thomas Tompion, c. 1691-2. Dial missing. Verge escapement, balance spring with 5 turns. Tulip pillars. Signed 'Tho. Tompion, London'.