George III's pendulum

1762

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

Small white cup in soft paste porcelain

1748-1763

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

1778

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

Small orrery by Benjamin Martin

1738-1777

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

Pair of bar magnets in box

1750-1795

Demainbray's yellow disc

1745-1755

Double brass stand for bell jars on a brass pillar

1761

‘Medico-Electrical Machine’ by Nairne and Blunt

1782-1793

Pair of seventeenth-century dividers

1600-1699

Compendium by Elias Allen

1630-1653

Celestial globe by Willem Janszoon Blaeu

1603

Watt's end measuring machine

1776

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

Long mahogany strip brass pin gauge with eight pins

1758-1769

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

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