Small orrery by Benjamin Martin
1738-1777
Brass-bound lodestone
1675-1700
Refracting telescope with achromatic lens, made by the Dollond family
1760-1775
Early balance spring watch by Thomas Tompion
1675-1679
Ready reckoner for ship's cargoes
1807
Demainbray's Archimedean screw
1752
Mezzotint portrait of Benjamin Franklin
1762
Telescope by John Yarwell.
1685-1695
Demainbray's convex lens
1750
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Sector signed John Allen
1630-1642
horological rubber
1850-1900
Pocket microscope by Jeremiah Sisson
1752
Gunter quadrant by Walter Hayes
1648-1687
Telescope by Christopher Cock
1673
Mural arc made for King George III
1770
Demainbray's syphon
1701-1752
Lunardi's second balloon ascending from St. George's Fields, 1785
1785-1790
Satirical print of a failed balloon launch from Foley House, London in 1784
1784
Compendium by Elias Allen
1630-1653
Stipple-engraved portrait of Benjamin Martin
1815
Pulley from long-case clock by Fromanteel
1660-1665
Pair of bar magnets in box
1750-1795
Divers Projets
1798
Clock weight from long-case clock by Fromanteel
1660-1665
Gear wheel from long-case clock by Fromanteel
1660-1665
Etching of an electrically powered garden
1755
Escape wheel from long-case clock by Fromanteel
1660-1665
Edmund Culpeper
1720
Silver sundial by Hunfrey Cole
1568-1590
100 Link Steel Surveying Chain, 1784.
1784
Demainbray's polemoscope
1701-1752
Demainbray's speaking trumpet
1700-1752
Clarke's Hydrometer (c. 1755)
1755
Thomas Tuttell
1695-1702
"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
Celestial globe by Willem Janszoon Blaeu
1603
Gunter sector signed Elias Allen
1623
Barnard Tompion clock
1708
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's rat's tail crane model
1735-1753
George III's weighted cylinder
1762
Unweighted cylinder in frame
1762
A Treatise named Lucarsolace
Section of lightning conductor from St Paul’s cathedral
1769
Demainbray's turquoise disc
1745-1755
Spiral slide-rule
1663
Demainbray's yellow disc
1745-1755
Compendium rule signed Humfrey Cole
1574
The Improved Pedometer or Waywiser
1765-1806