
Conto adding machine for eight figures
1905-1910
1905-1910
1965-1975
1950-1965
1975-1980
1965-1980
1950-1970
1950-1965
22 March 1961
1886
1894
1927-1935
1920
1945-1955
circa 1897
circa 1950s
1831-1870
1873-1876
1970-1980
1701-1900
1937
1966
1954-1969
1920
1915
1930-1940
1907-1920
1978-1980
1965-1975
2018
2018
1955-1970
1920-1940
1910-1925
1925-1937
1962
1960-1970
1925-1930
1950-1965
1955-1970
1947