Theodolite used for the Principal Triangulation of Great Britain
1791
Seal die, Ashby De La Zouch Canal Company
1794
Divers Projets
1798
Stipple-engraved portrait of Margaret Bryan and two children
1797
'Souscription' watch by Abraham-Louis Breguet
1800
Repeating watch with unusual escapement by Abraham-Louis Breguet
1795
Deck-watch used by Capt. George Vancouver on board HMS Discovery 1791-5
1791
Watch with four outer cases, made by Edward Prior for the Turkish export market
1800
Spring-detent escapement watch with gold case by John Arnold and Son
1796
Spring detent watch by John Arnold, used by Ruth Bellville and family to distribute GMT c.1834-1940
1794
Spring-detent escapement watch with gold case by John Barwise
1800
Compass
1800
Under-painted horn pair cased watch by George Flote
1800
Lever escapement watch by Josiah Emery
1792
Lever escapement watch by John Grant
1795
A skeleton clock designed to represent the terrestial globe by Henry Gratte
1800
Chronometer movement by John Arnold & Son
1795
Eight-day marine chronometer by John Arnold & Son
1795
Silver watch with unusual Robin escapement
1792
Marine timekeeper with constant force escapement by Josiah Emery
1792
Gold amulet in the form of a cobra
2000-100 BCE
Half-penny coin
1799
Marine barometer by R.B. Bate
mid-1800s
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
Moon globe by John Russell;England;1797
1797
Repeating watch movement by Vulliamy
1800
Half-quarter repeating gold watch by Mudge and Dutton
1791
Watch and compass by Benjamin Webb
1799
Marine chronometer by John Arnold and Son
1795
Watch movement by John Grant
1800
Clock-watch by Daniel De St Leu
1797
Neolithic flint scraper
4000-2001 BCE
Half-penny coin
1799
Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.
1642-1649 (original); 1883 (model)
Model of the Asklepion at Epidaurus, Greece, 1936
1936
Mobile cellular telephone (Motorola 'Flip Phone') model no. F09SQD8955AB
1990-95
Telescope by Galileo (replica)
1610; 1923
Isaac Newton’s Reflecting Telescope (replica)
1668; 1924
Model of Gutenberg's Press, 1430
1960-1979
Portrait of an East Indiaman sailing from Madras by Robert Dodd
1797
First Public Demonstration of a Montgolfier Balloon, 4th June, 1783.
1783; 1914
Paris Pharmaceutical Society Membership Medal, about 1830
circa 1830
Silver medal to commemorate Philippe Joseph
1793
Bronze medal
1794
Bronze medal
1794
Bronze medal to commemorate Marat, France, 1793
1793
Bronze medal to commemorate le Pelletier and Marat
1792-1800
Medal commemorating Johann Albert Heinrich Reimarus
1797
Middlesex token
1794
Halfpenny token
1793