
Slide rule by Robert Bissaker
1654
1654
1660-1665
1663
1660-1665
1660-1665
1660-1665
1663
1650
1650
1660
1660
2000-100 BCE
1990-96
1660-1665
1650-1665
1658
1658
1650
1658
1650
1650
1650
1660
1650-1660
1650
1660
4000-2001 BCE
1610; 1923
1642-1649 (original); 1883 (model)
1936
2050-1750 BCE
1990-95
300 BCE; 1905-1915
1845-1964
1701-1500
2000-100 BCE
1658
1658
circa 3000 BCE
2000 BCE
1657
1657
1658
1654
1663
1662
1665
1650
2000-500 BCE
2000-500 BCE