George III's pendulum

1762

Cubical polyhedral sundial

1751-1800

Medal commemorating the Montgolfier unmanned balloon ascent

1783

Medal, Blanchard's balloon ascent, Nuremberg, Germany, 1787

1785

Medal commemorating balloon flight of Blanchard at Frankfurt

1785

Half-penny coin

1806

Small white cup in soft paste porcelain

1748-1763

Portrait mezzotint print from engraving of Phelps Thomas and Bartlett John, 1778

1778

King George III's central forces machine

1762

Section of lightning conductor from St Paul’s cathedral

1769

Small orrery by Benjamin Martin

1738-1777

The Improved Pedometer or Waywiser

1765-1806

Etching of an electrically powered garden

1755

Ready reckoner for ship's cargoes

1807

Demainbray's Irish low-backed cart model

1735-1754.

Demainbray's turquoise disc

1745-1755

Demainbray's hydrostatic paradox vessels

1735-1752

Glass bell jar with a brass collar

1761

Demainbray's polemoscope

1701-1752

Pair of bar magnets in box

1750-1795

Demainbray's yellow disc

1745-1755

Silver vinaigrette in the shape of a harp, France, 1701-1800

1701-1800

Double brass stand for bell jars on a brass pillar

1761

‘Medico-Electrical Machine’ by Nairne and Blunt

1782-1793

Watt's end measuring machine

1776

Two Perkins 'tractors'

1795-1805

Square signed "J.Ramsden, 1757"

1757

100 Link Steel Surveying Chain, 1784.

1784

Demainbray's syphon

1701-1752

George III's weighted cylinder

1762

Satirical print of a failed balloon launch from Foley House, London in 1784

1784

Lunardi's second balloon ascending from St. George's Fields, 1785

1785-1790

model carriage chassis with two axles, 1762

1762

Divers Projets

1798

Mezzotint portrait of Benjamin Franklin

1762

Reproduction in wood. No 127

1808

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

Demainbray's Archimedean screw

1752

Unweighted cylinder in frame

1762

Barber's chair modified for dental extractions

1701-1800

Pocket globe in case by Dudley Adams

1799-1802

Clarke's Hydrometer (c. 1755)

1755

Demainbray's model scorpion catapult

1745-1755

Reproduction in wood, Dr Joseph Black

1809

Demainbray's convex lens

1750

Demainbray's rat's tail crane model

1735-1753

Demainbray's wharf jib crane model

1729-1753