horological rubber
1850-1900
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's polemoscope
1701-1752
Pair of bar magnets in box
1750-1795
Demainbray's speaking trumpet
1700-1752
Pair of seventeenth-century dividers
1600-1699
Demainbray's syphon
1701-1752
Demainbray's convex lens
1750
Sector signed John Allen
1630-1642
Celestial globe by Willem Janszoon Blaeu
1603
George III's weighted cylinder
1762
Unweighted cylinder in frame
1762
Barnard Tompion clock
1708
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
George III's pendulum
1762
Etching of an electrically powered garden
1755
Glass bell jar with a brass collar
1761
Double brass stand for bell jars on a brass pillar
1761
model carriage chassis with two axles, 1762
1762
Divers Projets
1798
Mezzotint portrait of Benjamin Franklin
1762
Stipple-engraved portrait of Margaret Bryan and two children
1797
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Edmund Culpeper
1720
George III's cycloidal pendulum
1762
George III's apparatus for oblique and compound collision
1762
Electrical chimes by George Adams
1781-1790
King George III's central forces machine
1762
Section of lightning conductor from St Paul’s cathedral
1769
Small orrery by Benjamin Martin
1738-1777
Ready reckoner for ship's cargoes
1807
"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
Stipple-engraved portrait of Benjamin Martin
1815
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
Satirical print of a failed balloon launch from Foley House, London in 1784
1784
George III's tidal demonstration model
1762
Pocket microscope by Jeremiah Sisson
1752
King George III's friction machine
1762
Gunter quadrant by Walter Hayes
1648-1687
Thomas Tuttell
1695-1702
A Treatise named Lucarsolace
Clarke's Hydrometer (c. 1755)
1755
Pocket globe in case by Dudley Adams
1799-1802
Gunter sector signed Elias Allen
1623
Slide rule for exchange of weights and measures
1815