Time Measurement
1787-1799
Astronomy
2008 (prototype)
King George III
1766
Surveying
1826-1828
1768-1769
Navigation
1876-1879
1821-1857
Space Technology
1992-1995
1686-1691
1770-1780
Heat
1900-1914
Gas Industry
Meteorology
1872
Mathematics
1876
1891
1900-1910
1780
1884
1754-1757
1857
1875-1900
1889
1820-1830
1821-1846
1874
Oceanography
1948
1822
1997
Wellcome (general)
1853
Microscopes
1770
Optics
Classical & Medieval Medicine
199-500
1750-1850
1933-1939
1886-1900
1751-1773
Collection Unassigned
1822-1823
Experimental Chemistry
1860-1880
Biochemistry
1923