Plaster mould

1790-1819

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

East Indiaman Herefordshire

1815

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

Pharmacy storage jar used for theriac

1725-1755

The Improved Pedometer or Waywiser

1765-1806

Crucible, piece missing, fused substance within

1790-1819

Etching of an electrically powered garden

1755

Pair of ebony violin fingerboard shape and sized hollow fabrications

1758-1773

Ready reckoner for ship's cargoes

1807

Demainbray's Irish low-backed cart model

1735-1754.

Socrates

1790-1819

Long mahogany strip brass pin gauge with five pins

1758-1769

Demainbray's turquoise disc

1745-1755

Demainbray's cometarium

1750-1760

Lancet owned by Edward Jenner

1720-1800

Demainbray's hydrostatic paradox vessels

1735-1752

Gold amulet in the form of a cobra

2000-100 BCE

Glass bell jar with a brass collar

1761

Adjustable dental pelican with two claws

1720-1800

Demainbray's polemoscope

1701-1752

Plaster urn

1790-1819

Part of four-part plaster split mould, rear of head and neck of James Watt, by James Watt

1790-1819

Pair of bar magnets in box

1750-1795

Plaster mould of head of Apollo

1790-1819

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

Stipple-engraved portrait of Benjamin Martin

1815

Steel bradawl with turned hickory handle, brass ferrule and securing nut

1758-1819

Plaster bust

1790-1819

‘Medico-Electrical Machine’ by Nairne and Blunt

1782-1793

Plaster mould

1790-1819

One plaster mould

1790-1819

Watt's end measuring machine

1776

Two Perkins 'tractors'

1795-1805

Crucible, broken, with three fragments present

1790-1819

Square signed "J.Ramsden, 1757"

1757

100 Link Steel Surveying Chain, 1784.

1784

Demainbray's syphon

1701-1752

George III's weighted cylinder

1762