Addac adding machine
1926
1926
circa 1910
1920-1925
1917
circa 1927
circa 1930
1915
1913
1914-1918
1921
1926
1902-1907
1927
1934
1901-1910
1915
1906
1923
1924-1927
1914-1918
1928
after 1903
1918-1922
1927
1915
1904-1914
1908
circa 1930
1918
1901
1914-1920
1920-1929
1912
1909
1905
1901-1930
1910
1910
1903
1902
1913-1923
1920
1930
1917
1910
1924
1925
1901
1928
1910