Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
Theodolite used for the Principal Triangulation of Great Britain
1791
Arkwright's Water Frame
1775
Anamorphosis Painting of Perspective View of a Ship Model
1744-1774
'Dutch forgery' watch signed John Wilter
1780
Arkwright's Water Frame, 1775
1775
Seal die, Ashby De La Zouch Canal Company
1794
Doorcase 56 Lincoln’s Inn Fields
circa 1750
Demainbray's Archimedean screw
1752
Mezzotint portrait of Benjamin Franklin
1762
Pair of bar magnets in box
1750-1795
Etching of an electrically powered garden
1755
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Demainbray's Irish low-backed cart model
1735-1754.
Repeating clock-watch with dials on front and back by Gautrin, Paris
1780
Repeating watch with unusual escapement by Abraham-Louis Breguet
1795
Gold and enamel watch by Robert Robin
1785-1795
Medal, Blanchard's balloon ascent, Nuremberg, Germany, 1787
1785
Wax male figure showing the veins and some organs of the body, Florence, Italy, 1776-1780
1776-1780
Wax male figure showing the arteries of the body, Florence, Italy, 1776-1780
1776-1780
Wax male figure showing the muscles of the body
1776-1780
Demainbray's convex lens
1750
Gold amulet in the form of a cobra
2000-100 BCE
Spoon with folding handle
1778
Portrait of Francois Justin Vulliamy (1712 – 1797)
1760-1790
Medal commemorating the Montgolfier unmanned balloon ascent
1783
Medal commemorating balloon flight of Blanchard at Frankfurt
1785
Cutter, Alert
1755
Demainbray's model scorpion catapult
1745-1755
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Pocket microscope by Jeremiah Sisson
1752
Small orrery by Benjamin Martin
1738-1777
Mural arc made for King George III
1770
Lunardi's second balloon ascending from St. George's Fields, 1785
1785-1790
Satirical print of a failed balloon launch from Foley House, London in 1784
1784
Demainbray's cometarium
1750-1760
100 Link Steel Surveying Chain, 1784.
1784
Clarke's Hydrometer (c. 1755)
1755
Demainbray's rat's tail crane model
1735-1753
George III's weighted cylinder
1762
Unweighted cylinder in frame
1762
Section of lightning conductor from St Paul’s cathedral
1769
Square signed "J.Ramsden, 1757"
1757
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Glass bell jar with a brass collar
1761
King George III's friction machine
1762
George III's apparatus for oblique and compound collision
1762
Double brass stand for bell jars on a brass pillar
1761