Meteorology
1794
Clockmakers
Railway Heraldry
Classical & Medieval Medicine
2050-1750 BCE
Coins, Medals & Tokens
2000-1350 BCE
Time Measurement
hallmarked 1794
Motive Power
Building Construction
2000-1001 BCE
1991-1786 BCE
Surgery
1803-876
Materia Medica & Pharmacology
1851-930
Therapeutics
1801-190
2000-1000 BCE