Addo-X electric printing adding machine
1965-1975
Comptograph by Sumlock Comptometer Ltd.
1955-1965
Remington Rand hand-operated printing adding machine
1930-1940
Early Sundstrand calculating machine
1955-1965
Odhner calculating/printing machine
1950-1955
Olivetti Divisumma 24 electric printing calculating machine
1965-1975
Olivetti Summaprima 20
1960-1965
Printing adding machine
1950-1960
Electric adding machine with case and instructions
1965