Plaster mould
1790-1819
George III's pendulum
1762
Cubical polyhedral sundial
1751-1800
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
Half-penny coin
1806
Small white cup in soft paste porcelain
1748-1763
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
Small orrery by Benjamin Martin
1738-1777
The Improved Pedometer or Waywiser
1765-1806
Crucible, piece missing, fused substance within
1790-1819
Etching of an electrically powered garden
1755
Pair of ebony violin fingerboard shape and sized hollow fabrications
1758-1773
Ready reckoner for ship's cargoes
1807
Demainbray's Irish low-backed cart model
1735-1754.
Socrates
1790-1819
Long mahogany strip brass pin gauge with five pins
1758-1769
Demainbray's turquoise disc
1745-1755
Demainbray's cometarium
1750-1760
Demainbray's hydrostatic paradox vessels
1735-1752
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
Pair of bar magnets in box
1750-1795
Plaster mould of head of Apollo
1790-1819
Demainbray's yellow disc
1745-1755
Double brass stand for bell jars on a brass pillar
1761
Stipple-engraved portrait of Benjamin Martin
1815
Steel bradawl with turned hickory handle, brass ferrule and securing nut
1758-1819
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
Square signed "J.Ramsden, 1757"
1757
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
Long mahogany strip brass pin gauge with eight pins
1758-1769
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