Demainbray's turquoise disc
1745-1755
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's polemoscope
1701-1752
Pair of bar magnets in box
1750-1795
Demainbray's yellow disc
1745-1755
horological rubber
1850-1900
Demainbray's syphon
1701-1752
Demainbray's speaking trumpet
1700-1752
Barnard Tompion clock
1708
Pair of seventeenth-century dividers
1600-1699
Section of lightning conductor from St Paul’s cathedral
1769
Ready reckoner for ship's cargoes
1807
horological gravers
1850-1900
horological file
1850-1900
"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
Sector signed John Allen
1630-1642
Horological gravers with an oval profile
1850-1900
Horological gravers with triangular profile
1850-1900
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Compendium rule signed Humfrey Cole
1574
Compendium by Elias Allen
1630-1653
Square signed "J.Ramsden, 1757"
1757
100 Link Steel Surveying Chain, 1784.
1784
George III's weighted cylinder
1762
Sector by Charles Whitwell
1600-11
Gunter quadrant
1650-1725
Pocket microscope by Jeremiah Sisson
1752
Gunter quadrant by Walter Hayes
1648-1687
wheel cutting machine
1668-1672 Probable
horological gravers
1850-1900
Unweighted cylinder in frame
1762
Silver sundial by Hunfrey Cole
1568-1590
horological gravers
1850-1900
Pocket globe in case by Dudley Adams
1799-1802
Clarke's Hydrometer (c. 1755)
1755
Demainbray's model scorpion catapult
1745-1755
horological graver
1850-1900
Demainbray's convex lens
1750
Demainbray's rat's tail crane model
1735-1753
Demainbray's wharf jib crane model
1729-1753
Gunter sector signed Elias Allen
1623
Slide rule for exchange of weights and measures
1815
Telescope by John Yarwell.
1685-1695
‘Visual glasses’ designed by Benjamin Martin
1756-1800
Telescope by Christopher Cock
1673
Mural arc made for King George III
1770
Spiral slide-rule
1663
Brass-bound lodestone
1675-1700
Gunter quadrant
1650-1725
Demainbray's Irish low-backed cart model
1735-1754.