Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
Arkwright's Water Frame
1775
'Dutch forgery' watch signed John Wilter
1780
Arkwright's Water Frame, 1775
1775
Mezzotint portrait of Benjamin Franklin
1762
George III's weighted cylinder
1762
Unweighted cylinder in frame
1762
George III's apparatus for oblique and compound collision
1762
Double brass stand for bell jars on a brass pillar
1761
model carriage chassis with two axles, 1762
1762
George III's cycloidal pendulum
1762
George III's pendulum
1762
Flintlock pistol belonging to John Roger Arnold
1770-1780
Repeating clock-watch with dials on front and back by Gautrin, Paris
1780
Watch with double dial
1760
Gold amulet in the form of a cobra
2000-100 BCE
Spoon with folding handle
1778
Medal commemorating the Montgolfier unmanned balloon ascent
1783
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
Mural arc made for King George III
1770
Section of lightning conductor from St Paul’s cathedral
1769
King George III's friction machine
1762
George III's tidal demonstration model
1762
King George III's central forces machine
1762
Pivoted-detent escapement watch by John Arnold
1776
Gold repoussé watch depicting the Choice of Hercules, by John Ellicott
1767
Quarter repeating watch by Ellicott, London
1765-1775
Glass bell jar with a brass collar
1761
Achromatic doublet lens with a focal length of 52 inches
1780
George III's glass sphere
1761
Wax male anatomical figure
1776-1780
Wax male figure showing the muscles and bones of the body, Florence, Italy, 1776-1780
1776-1780
Engraving of a demonstration to compare lightning conductor designs
1778-1780
Mahogany cross-piece for an air pump
1761
George III's inclined plane and Horse-way
1762
Mahogany board with round ends and two short brass pillars
1761
Two brass pillars for an air pump
1761
Keys to the Clockmakers Company chest
1766
Neolithic flint scraper
4000-2001 BCE
Medal commemorating the Montgolfier unmanned balloon ascent
1783
Refracting telescope with achromatic lens, made by the Dollond family
1760-1775
Mezzotint portrait of John Bird
1776
Magnetic toy by George Adams
1765
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
George III's Magdeburg hemispheres
1761
George III's compound engine
1762
George III's model crriage body
1762
Silver microscope by George Adams, c. 1761.
1763