Slide rule for exchange of weights and measures
1815
East Indiaman Herefordshire
1815
Gold amulet in the form of a cobra
2000-100 BCE
Stipple-engraved portrait of Benjamin Martin
1815
Letter opener with calendar and map, 1893-1894
1893-4
Sample of gutta percha insulated cable, 1863-7
1863-7
Hedley's experimental model for testing adhesion.
1812
Copy of Chamberlen obstetric forceps
1813
Silver Regency tripod mustard pot
1811-1812
'Haystack' Boiler, 1775-1799
1775-1799 (original); 1900-1907 (model)
Freud electronic laughing ball
1990-96
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
Atmospheric Engine by John Smeaton, 1772
1772 (original); 1919 (model)
Neolithic flint scraper
4000-2001 BCE
Sunderland ware jug decorated with pink lustre bands and splashes
1813
Silver ear trumpet hearing aid, London, England, 1814
1814
Piston and Rod, from Newcomen Pumping Engine 'Old Sarah'
1815
May - Study No 167
1870-10
Wooden backstaff or Davis quadrant made by John Gilbert on Tower Hill
1730; 1967
Photograph of Fern Leaf
1836-02
Lorina, Edith and Alice Liddel
1872-08
Harpenden pocket stadiometer sent out to Ludlow Boys' School as part of a series of nationwide measurements
1972-3
Plano-convex brick, Ubaid, Iraq, c 2500 BC.
2500 BCE
Length of red silk ribbon worn as a belt to promote general good health
1880-120
Mobile cellular telephone (Motorola 'Flip Phone') model no. F09SQD8955AB
1990-95
S.Smith's escapement
1812
Replica of Islamic Astrolabe
1066; 1876
Toothbrush, silver, by I
1814
Implements Animated
1811
Water-colour. Mr. Sadler's balloon ascent at Hackney
1811
NEMA cryptography machine type T-D
1945-50
Mr. Sadler
1815
Excavated neolithic flint perhaps used for trephination
3000-1500
Musical cryptographic device
1812
Binks' burettes and a Wollaston slide rule
1814
copy of a gold cup.
3000-2000 BCE
Spherical model part
1812-1813
Drawing of Gass Works
1812
Reversible axe on adze, green stone blade, North Papua (Astrolabe Bay)
2000 BCE
Silver medal
1814
Bronze medal
1811-1815
Oval silver membership medal
1815
Bronze medal
1815
Medal, gilded bronze
1814-1815
Circular silver medal with silk ribbon
1815
Bronze life saving medal
1811
Plaster cast, "Stanislaus King of Poland"
1812
Reproduction in marble, profile bust
1811
Iron Cockspur burner 1812
1812
Quarter-franc coin of Napoleon I (Italian)
1812