
Dividing engine for making sextants and octants
Made late 1700s, modified 1800s
Made late 1700s, modified 1800s
2000-100 BCE
1695-1702
1697
1695-1700
1702
1710
circa 1715
circa 1710
1700-1710
1708
1696-1700
1700
4000-2001 BCE
1990-96
1714
1700
1700
1700
1712-1713
1700-1710
1701-1708
1695-1696
1711
1712
1700
1700
1700-1710
1708-1710
1700
1700
1642-1649 (original); 1883 (model)
1936
1990-95
1707
1703
1704
1714
1712
1701
1704
1711
30 CE
1713
30 CE
2686-2613 BCE
1945-50
1706
30-200
2000-1350