Mechanical Calculators

 

 

Abacus
Addiator Hexadat
Addiator Octadat
Addo Multo Pinwheel Calculator
Adwel W504 Full-keyboard Adding Machine
Brunsviga 13RM
Burroughs Mechanical Desk Top Calculator
Facit 1004 Mechanical Calculator
Friden Model H8 Calculator
Kingson Pocket Calculator
Lagomarsino Numeria Model 7203
Monroe Educator
Numeria Modello 9200
Olivetti Summa Prima 20
Olivetti Summa Prima 20 (pre-decimal)
Produx Calculator
Taylor's Sterling Currency Addometer

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