Addac adding machine
1926
1926
circa 1910
1934
circa 1927
circa 1930
1915
1913
1920-1935
1914-1918
1914-1918
1928
1934-1935
1932-1936
after 1903
1918-1922
1927
1915
1904-1914
1935
1908
circa 1930
1918
1914-1920
1920-1929
1912
1909
1937
1937
1932
1905
1903
1913-1923
1920
1930
1917
1910
1924
1925
1928
1910
1912
1927
1914
1931
1906
1910
1936
1931
1935
1907-1920