Addiator Arithma
ADDO Mod 16
ADDO-X 331
Brunsviga 13RK
Brunsviga 13ZK
Calculator "Superautomat SASL"
Facit 1004
Facit EK
Mechanical calculator MADAS
Mellita, Model V/16
Monroe Model L200-X
Nisa PK 5
Original Produx Calculator
Remington Rand Adding Machine
Walther DE 100
Walther RM
XxX calculator

ADDO Mod 16
A.B. Addo, 1926
Hand operated mechanical calculator. Full-keyboard add-lister for the old sterling currency (£sd). Intended for addition and subtraction with the result printed as a listing on the paper, though multiplication is posible using repeated addition.