Guinea coin of George III
1776
Guinea coin of George III
1774
Guinea coin of George III
1775
Fourteen-Kreutzer coin of Francis I (Austria)
1793
Guinea coin of George III
1777
Guinea coin of George III
1777
Petit-Ecu of Three Livres coin of Louis XVI (France)
1780
Half-Guinea 'Spade' coin of George III
1790
Spade' coin Guinea of George III
1788
Spade' coin Guinea of George III
1789
Guinea coin of George III
1777
Spade' coin Guinea of George III
1790
Spade' coin Guinea of George III
1790
Spade' coin Guinea of George III
1788
Spade' coin Guinea of George III
1789
Four Ducats coin of Maria Theresa of Hungary
1774
Two Ducats coin of Maria Theresa of Hungary
1773
Adler coin of Frederick William of Prussia
1797
Roman Coin of Tiberius
30 CE
Quarter-Sovereign coin of George III
1762
Onza de Oro or Eight Scudos coin of Carlos III (Spain)
1778
Spade' Guinea coin of George III
1790
Token - JOHN WILKINSON IRON MASTER
1788
Quarter-Guinea coin of George III
1762
Two Denari coin of Victor Amadeus II (King of Sardinia)
1774
Spade' coin Guinea of George III
1791
Spade' coin Guinea of George III
1791
Spade' coin Guinea of George III
1793
Roman Coin of Tiberius
30 CE
Piastre coin of Carlos III (Spain)
1772
Two Reales coin of Charles III (Spain)
1774
Petit-Ecu of Three Livres coin of Louis XVI (France)
1791
Chest microscope
1750
Optical cabinet made by B. Martin about 1771
1771
Upright microscope (c.1760)
1760
Drum component for volute compass
1760
Drum component for volute compass
1760
Drum component for volute compass
1760
Drum component for volute compass
1760
Drum component for volute compass
1760
Diagonal Spy Glass
1750
Reading Glass (c.1750)
1750
Claude Lorrain Mirror of white glass with black wax at back (c.1770-90)
1770-1790
Reading Glass (c.1750)
1750
Claude Lorrain Mirror of black glass (c.1750-70)
1750-1770
Joseph Priestley
1788
Vol. 1 of "Amelia" published by A. Millar, 1752
1752
Microscope (c.1750-60)
1750-1760
Microscope (dated 1754)
1754
Solar microscope (dated 1770) signed B.MARTIN INVT ET FECIT LONDINI NO 34
1770