Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Doorcase 56 Lincoln’s Inn Fields
circa 1750
Tumbler, horn, with silver strip around rim, 1742
1742
Demainbray's Archimedean screw
1752
Demainbray's model scorpion catapult
1745-1755
Demainbray's convex lens
1750
Model 'Maximum machine', before 1753.
1740-1753
Etching of an electrically powered garden
1755
Demainbray's cometarium
1750-1760
Gold amulet in the form of a cobra
2000-100 BCE
Square signed "J.Ramsden, 1757"
1757
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Pocket microscope by Jeremiah Sisson
1752
Clarke's Hydrometer (c. 1755)
1755
Cutter, Alert
1755
Freud electronic laughing ball
1990-96
Demainbray's scioptric ball
1745-1755
Demainbray's convex mirror
1752
Male urinal, Netherlands, 1740-1760
1740-1760
Section of track
1745-1755
Model diving bell with 12 sinking weights
before 1753
Demainbray's optical model
1752
Demainbray's optical model
1752
Demainbray's four wheeled wagon model
1751
Demainbray's optical model
1752
Demainbray's optical model
1752
Model to demonstrate the path of a projectile
1740-1753
Demainbray's model of a camera obscura
1752
Model of Hooke's universal joint
1760
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
Demainbray's compound microscope
1745
Cutter, Alert
1755
Neolithic flint scraper
4000-2001 BCE
Viewer microscope, with bead lens, in square body
1888-185
Boxfoot microscope with ball-socketed pillar
1755
5 lancets
1744
Set of 3 pocket instruments
1742
Diagonal Spy Glass
1750
Reading Glass (c.1750)
1750
Reading Glass (c.1750)
1750
Reading Glass (c.1750)
1750
Frame to demonstrate parallelogram of forces
1752
Tubes for the whirling table
1753
Six ivory balls
1750
Glass bell, with suspension ring
1750
Balance beam, steel, boxwood
1745-1755
Paul Werner, liberator of Colberg
1760
Alabaster kohl pot
2000-1350
Harpenden pocket stadiometer sent out to Ludlow Boys' School as part of a series of nationwide measurements
1972-3