George III's pendulum
1762
Small white cup in soft paste porcelain
1748-1763
Model of early manual fire engine, ca. 1680.
1680
King George III's central forces machine
1762
Section of lightning conductor from St Paul’s cathedral
1769
Etching of an electrically powered garden
1755
Pair of ebony violin fingerboard shape and sized hollow fabrications
1758-1773
Demainbray's Irish low-backed cart model
1735-1754.
Long mahogany strip brass pin gauge with five pins
1758-1769
Demainbray's turquoise disc
1745-1755
Demainbray's hydrostatic paradox vessels
1735-1752
Trade card for John Yarwell, optician, London, England, 1697
1697
Glass bell jar with a brass collar
1761
Demainbray's polemoscope
1701-1752
"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
Sector signed John Allen
1630-1642
Demainbray's yellow disc
1745-1755
Double brass stand for bell jars on a brass pillar
1761
Pair of seventeenth-century dividers
1600-1699
Compendium rule signed Humfrey Cole
1574
Compendium by Elias Allen
1630-1653
Celestial globe by Willem Janszoon Blaeu
1603
Square signed "J.Ramsden, 1757"
1757
Demainbray's syphon
1701-1752
George III's weighted cylinder
1762
Long mahogany strip brass pin gauge with eight pins
1758-1769
model carriage chassis with two axles, 1762
1762
Mezzotint portrait of Benjamin Franklin
1762
Sector by Charles Whitwell
1600-11
Gunter quadrant
1650-1725
Demainbray's speaking trumpet
1700-1752
George III's tidal demonstration model
1762
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Pocket microscope by Jeremiah Sisson
1752
King George III's friction machine
1762
Gunter quadrant by Walter Hayes
1648-1687
Thomas Tuttell
1695-1702
Demainbray's Archimedean screw
1752
Unweighted cylinder in frame
1762
Silver sundial by Hunfrey Cole
1568-1590
Clarke's Hydrometer (c. 1755)
1755
Demainbray's model scorpion catapult
1745-1755
Demainbray's convex lens
1750
Short mahogany strip brass pin gauge with eight pins
1758-1769
Demainbray's rat's tail crane model
1735-1753
Demainbray's wharf jib crane model
1729-1753
Gunter sector signed Elias Allen
1623
Edmund Culpeper
1720
Expedition Crane
1764
George III's cycloidal pendulum
1762