Gold amulet in the form of a cobra
2000-100 BCE
2000-100 BCE
1893-4
1799-1802
1799
circa 1805
1802
1805
circa 1800
1799
1705-1737
mid-1800s
1801
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1801
1990-96
1801
circa 1800
1805
prob year of patent 1802
1800
1800
1805
1800
10000-5000 BCE
1910-130
1800-1805
1803
1804
1800
1713-1750
1804-1805
1801
circa 1800
1800
1801
1800
1805
1802
1803
1692-1730
1801
1800
1940-1050
circa 1800
1800
1801
circa 1800
1800