Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
Napier's Bones
1690
Camera Obscura
1701-1752
Spring-driven Bracket Clock by Isaac Thuret
1665-1670
Barnard Tompion clock
1708
Wooden Acupuncture Model
1681
Orrery made by John Rowley for the Earl of Orrery
1712-1713
Verge escapement watch movement by Thomas Tompion and George Graham
1711
Tumbler, horn, with silver strip around rim, 1742
1742
Model 'Maximum machine', before 1753.
1740-1753
Doorcase 56 Lincoln’s Inn Fields
circa 1750
Combined graphometer and plummet clinometer, 1663.
1663
Demainbray's Archimedean screw
1752
Mezzotint portrait of Benjamin Franklin
1762
Demainbray's convex lens
1750
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 rat's tail crane model
1735-1753
Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Demainbray's Irish low-backed cart model
1735-1754.
Repeating watch by William Andreas Enderlin with enamel in the manner of Jean Mussard V
1700-1725
Wandering hour watch by Sinclare, Dublin, c.1690
1690
Hexagonal table clock by Johann Schmidtbaur
1700-1725
Long mahogany strip brass pin gauge with five pins
1758-1769
Short mahogany strip brass pin gauge with eight pins
1758-1769
Perspective drawing apparatus, incomplete, in integral mahogany case
1760-1770
Long mahogany strip brass pin gauge with eight pins
1758-1769
Saw used by Samuel Crompton
1750-1770
Cutter, Alert
1755
Demainbray's model scorpion catapult
1745-1755
Brass-bound lodestone
1675-1700
Seven almost identical unfinished watch movements
1670
Verge escapement watch movement by Ahasuerus Fromanteel
1685
Pendulum clock by Pieter Visbach
1660
Portrait of Benjamin Gray (1676 – 1764)
1745-1755
Gold amulet in the form of a cobra
2000-100 BCE
Pewter teapot, with straight and turned wooden handle, 1701-1750
1701-1750
Plane table outfit by Benjamin Cole
1750-1766
wheel cutting machine
1668-1672 Probable
Telescope by John Yarwell.
1685-1695
Pocket microscope by Jeremiah Sisson
1752
Telescope by Christopher Cock
1673
Mural arc made for King George III
1770
Gunter quadrant
1650-1725
Pulley from long-case clock by Fromanteel
1660-1665
Clock weight from long-case clock by Fromanteel
1660-1665