Small orrery by Benjamin Martin
1738-1777
Ready reckoner for ship's cargoes
1807
Demainbray's model scorpion catapult
1745-1755
Demainbray's Archimedean screw
1752
horological gravers
1850-1900
Mezzotint portrait of Benjamin Franklin
1762
wheel cutting machine
1668-1672 Probable
Telescope by John Yarwell.
1685-1695
Demainbray's convex lens
1750
Horological gravers with an oval profile
1850-1900
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Horological gravers with triangular profile
1850-1900
Sector signed John Allen
1630-1642
horological gravers
1850-1900
horological gravers
1850-1900
horological graver
1850-1900
Pocket microscope by Jeremiah Sisson
1752
Dover Castle turret clock
1632-1640
Gunter quadrant by Walter Hayes
1648-1687
horological file
1850-1900
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
Gunter quadrant
1650-1725
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
Gunter quadrant
1650-1725
Etching of an electrically powered garden
1755
Brass-bound lodestone
1675-1700
Escape wheel from long-case clock by Fromanteel
1660-1665
Demainbray's cometarium
1750-1760
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
Gunter sector signed Elias Allen
1623
Celestial globe by Willem Janszoon Blaeu
1603
Barnard Tompion clock
1708
Demainbray's hydrostatic paradox vessels
1735-1752