Theodolite used for the Principal Triangulation of Great Britain
1791
Compound microscope
1700
Orrery made by John Rowley for the Earl of Orrery
1712-1713
Demainbray's Irish low-backed cart model
1735-1754.
Demainbray's Archimedean screw
1752
Mezzotint portrait of Benjamin Franklin
1762
Demainbray's convex lens
1750
Demainbray's syphon
1701-1752
Pair of bar magnets in box
1750-1795
Divers Projets
1798
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
Stipple-engraved portrait of Margaret Bryan and two children
1797
Ready reckoner for ship's cargoes
1807
Telescope by John Yarwell.
1685-1695
‘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
Small orrery by Benjamin Martin
1738-1777
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
Escape wheel from long-case clock by Fromanteel
1660-1665
Edmund Culpeper
1720
Silver sundial by Hunfrey Cole
1568-1590
Clarke's Hydrometer (c. 1755)
1755
"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
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
Spiral slide-rule
1663
Compendium rule signed Humfrey Cole
1574
The Improved Pedometer or Waywiser
1765-1806
Square signed "J.Ramsden, 1757"
1757
Slide rule for exchange of weights and measures
1815
Pair of seventeenth-century dividers
1600-1699
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752