Marine barometer by R.B. Bate
mid-1800s
Morland's calculating machine
1666-1680
Set of 7 square brass grain weights and two folded pieces of paper: one of which is inscribed with ‘Alicante’, for the Mark of Alicante from the Castlereagh Collection
1800-1818
Set of 8 brass nested cup weights for the Mark of Alicante from the Castlereagh Collection for Alicante
1800-1818
Sycamore (wood) case with lid, for the Mark of Alicante from the Castlereagh Collection
1800-1818
Cutter, Alert
1755
12 inch architectonic sector in ivory and silver
1733-1795
Model to demonstrate the path of a projectile
1740-1753
Case for Culpeper microscope
1720-1730
CAROLVS II.
1667
Sun-and-moon dial by Elias Allen
1607-1653
Ebony and brass octant.
1777-1810
Early balance spring watch by Thomas Tompion
1675-1679
Demainbray's compound microscope
1745
Refracting telescope with achromatic lens, made by the Dollond family
1760-1775
Achromatic doublet lens with a focal length of 52 inches
1780
Bow spectacles made of leather and steel
1601-1700
Model diving bell with 12 sinking weights
before 1753
Mezzotint portrait of John Bird
1776
ELIAS ALLEN
1666
Gunter quadrant
1640
Telescope by John Marshall
1685-1695
Magnetic toy by George Adams
1765
George III's glass sphere
1761
Objective lens by John Reeves
1657-1689
Beam compass by George Adams
1775-1795
Gear wheel from long-case clock by Fromanteel
1660-1665
Sundial making tool
1690-1710
Demainbray's convex mirror
1752
Magnetic compass and sundial by Henry Sutton
1650-1665
Demainbray's scioptric ball
1745-1755
Slide rule by Robert Bissaker
1654
Mezzotint portrait of John Theophilus Desaguliers
1725
Moon globe by John Russell;England;1797
1797
Demainbray's optical model
1752
Demainbray's optical model
1752
Demainbray's optical model
1752
Demainbray's optical model
1752
Horary quadrant by Henry Sutton
1658
Horary quadrant by Henry Sutton
1658
Pocket watch by Thomas Tompion
1675-1700
Pedometer by Spencer & Perkins
1775-1794
Handheld reading lens and case
1680-1700
Engraving of a demonstration to compare lightning conductor designs
1778-1780
Silver sector signed by Culpeper
1700-1737
Demainbray's wire cage
1700-1752
Demainbray's four wheeled wagon model
1751
Camera Obscura
1701-1752
Demainbray's model of a camera obscura
1752
Astrolabe by Ferdinand Arsenius
1607-1618