Demainbray's turquoise disc
1745-1755
Demainbray's hydrostatic paradox vessels
1735-1752
Demainbray's polemoscope
1701-1752
Demainbray's yellow disc
1745-1755
Demainbray's speaking trumpet
1700-1752
Doorcase 56 Lincoln’s Inn Fields
circa 1750
Long mahogany strip brass pin gauge with five pins
1758-1769
Long mahogany strip brass pin gauge with eight pins
1758-1769
Short mahogany strip brass pin gauge with eight pins
1758-1769
Perspective drawing apparatus, incomplete, in integral mahogany case
1760-1770
Tumbler, horn, with silver strip around rim, 1742
1742
Pewter teapot, with straight and turned wooden handle, 1701-1750
1701-1750
Demainbray's syphon
1701-1752
Saw used by Samuel Crompton
1750-1770
Demainbray's Irish low-backed cart model
1735-1754.
George III's weighted cylinder
1762
Demainbray's Archimedean screw
1752
Unweighted cylinder in frame
1762
Demainbray's model scorpion catapult
1745-1755
Brass-bound lodestone
1675-1700
George III's pendulum
1762
Model of early manual fire engine, ca. 1680.
1680
King George III's central forces machine
1762
Demainbray's convex lens
1750
Model 'Maximum machine', before 1753.
1740-1753
Small white cup in soft paste porcelain
1748-1763
Section of lightning conductor from St Paul’s cathedral
1769
Pharmacy storage jar used for theriac
1725-1755
Etching of an electrically powered garden
1755
Demainbray's cometarium
1750-1760
Gold amulet in the form of a cobra
2000-100 BCE
Trade card for John Yarwell, optician, London, England, 1697
1697
Glass bell jar with a brass collar
1761
Double brass stand for bell jars on a brass pillar
1761
Cupellation furnace
1696-1700
Square signed "J.Ramsden, 1757"
1757
model carriage chassis with two axles, 1762
1762
Mezzotint portrait of Benjamin Franklin
1762
Gunter quadrant
1650-1725
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
Thomas Tuttell
1695-1702
Pill tile, England, 1671-1730
1671-1730
wheel cutting machine
1668-1672 Probable
Clarke's Hydrometer (c. 1755)
1755
Demainbray's rat's tail crane model
1735-1753
Demainbray's wharf jib crane model
1729-1753
Edmund Culpeper
1720