Oertling No.3A analytical balance
1848-1882
1848-1882
1950-1955
1945-1955
1913
1800-1810
circa 1886
1949
1895-1905
1920-1930
1956
1905-1915
1874-1876
2000-2001
1935-1945
1910
1879
1963
circa 1886
1830-1860
1870
circa 1886
1950-1959