Silver microscope by George Adams, c. 1761.
1763
1763
1752
1745
1720-1730
1671-1700
1665-1675
1835
1985
1870-1888
1885
1986
1801
1925-1949 (estimated)
1695-1705
1670-1675
1957
1994
1885
1825-1835
1971-1974
circa 1960-1969
1857-1869
1955-1959
circa 1965-1974
1900-1914
1960
1989-1990
1720-1730
1884
1765-1775
1950-1959 (estimated)
1963-1965
1745-1755
1680
1728-1730
1754-1757
1986 (model)