Napier's Bones
1690
Orrery made by John Rowley for the Earl of Orrery
1712-1713
Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
Early balance spring watch by Thomas Tompion
1675-1679
Table clock with quarter chiming by William Speakman
1690-1700
Wooden Acupuncture Model
1681
Doorcase 56 Lincoln’s Inn Fields
circa 1750
Mezzotint portrait of Benjamin Franklin
1762
Demainbray's syphon
1701-1752
Etching of an electrically powered garden
1755
Demainbray's polemoscope
1701-1752
Demainbray's speaking trumpet
1700-1752
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Repeating watch by William Andreas Enderlin with enamel in the manner of Jean Mussard V
1700-1725
Verge escapement watch movement by Ahasuerus Fromanteel
1685
Wandering hour watch by Sinclare, Dublin, c.1690
1690
Hexagonal table clock by Johann Schmidtbaur
1700-1725
Cutter, Alert
1755
Demainbray's model scorpion catapult
1745-1755
Demainbray's Archimedean screw
1752
Telescope by John Yarwell.
1685-1695
Demainbray's convex lens
1750
Pocket microscope by Jeremiah Sisson
1752
Telescope by Christopher Cock
1673
Mural arc made for King George III
1770
Demainbray's cometarium
1750-1760
Edmund Culpeper
1720
Clarke's Hydrometer (c. 1755)
1755
Thomas Tuttell
1695-1702
Barnard Tompion clock
1708
Demainbray's wharf jib crane model
1729-1753
Demainbray's rat's tail crane model
1735-1753
George III's weighted cylinder
1762
Unweighted cylinder in frame
1762
Section of lightning conductor from St Paul’s cathedral
1769
Demainbray's Irish low-backed cart model
1735-1754.
Cupellation furnace
1696-1700
Trade card for John Yarwell, optician, London, England, 1697
1697
Square signed "J.Ramsden, 1757"
1757
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Glass bell jar with a brass collar
1761
King George III's friction machine
1762
George III's apparatus for oblique and compound collision
1762
Double brass stand for bell jars on a brass pillar
1761
model carriage chassis with two axles, 1762
1762
George III's cycloidal pendulum
1762
George III's tidal demonstration model
1762
King George III's central forces machine
1762