Plaster mould
1790-1819
George III's pendulum
1762
Medal commemorating the Montgolfier unmanned balloon ascent
1783
Medal, Blanchard's balloon ascent, Nuremberg, Germany, 1787
1785
Medal commemorating balloon flight of Blanchard at Frankfurt
1785
Charles Green Aeronaut
1836
Hand loom
1825-1835
Half-penny coin
1806
East Indiaman Herefordshire
1815
Portrait mezzotint print from engraving of Phelps Thomas and Bartlett John, 1778
1778
King George III's central forces machine
1762
Section of lightning conductor from St Paul’s cathedral
1769
The Improved Pedometer or Waywiser
1765-1806
Crucible, piece missing, fused substance within
1790-1819
Ready reckoner for ship's cargoes
1807
Socrates
1790-1819
Gold amulet in the form of a cobra
2000-100 BCE
Glass bell jar with a brass collar
1761
Plaster urn
1790-1819
Part of four-part plaster split mould, rear of head and neck of James Watt, by James Watt
1790-1819
Plaster mould of head of Apollo
1790-1819
Double brass stand for bell jars on a brass pillar
1761
Stipple-engraved portrait of Benjamin Martin
1815
Plaster bust
1790-1819
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Plaster mould
1790-1819
One plaster mould
1790-1819
Watt's end measuring machine
1776
Two Perkins 'tractors'
1795-1805
Crucible, broken, with three fragments present
1790-1819
100 Link Steel Surveying Chain, 1784.
1784
George III's weighted cylinder
1762
Satirical print of a failed balloon launch from Foley House, London in 1784
1784
Lunardi's second balloon ascending from St. George's Fields, 1785
1785-1790
model carriage chassis with two axles, 1762
1762
Divers Projets
1798
Mezzotint portrait of Benjamin Franklin
1762
Reproduction in wood. No 127
1808
George III's tidal demonstration model
1762
Stipple-engraved portrait of Margaret Bryan and two children
1797
Letter opener with calendar and map, 1893-1894
1893-4
Replica of the first Morse telegraph, 1835
1934
King George III's friction machine
1762
Plaster cast of Venus
1790-1819
Reproduction alabaster bust of Homer
1790-1819
Unweighted cylinder in frame
1762
Piece of wood ,
1790-1819
Piece of wood, one side partly cut out
1790-1819
Pocket globe in case by Dudley Adams
1799-1802
Small crucible, large broken piece missing
1790-1819