Electromechanical calculating machines from the 1960's
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Rotary calculators

Printing calculators
Friden 1217
Lagomarsino Totalia S4GT
Marchant 416-S
Monroe 570
Monroe 580
Monroe Mach 1.07
Monroe PC-1421
Olivetti Divisumma 26
Olivetti Logos 27-2
Olivetti Tetractys
Precisa 166
Victor 73-85-54
Victor 79-88-54
Victor 10-871
Walther Diwa 32

Mechanisms

Glossary

Other calculating devices

References and links

Acknowledgements

Wanted

 
Monroe 570        
 
Manufacturer
  Monroe Calculating Machine Co.
Amsterdam, Holland
 
Mechanism
  oscillating rack
 
Capacity
  15
 
Years produced
   
 
Price when new
  $685 in 1968
 
Size (W x D x H)
  in.
cm.
 
Weight
  lb. oz. (kg)
 
Features
  high speed multiplication
back transfer
  click on photo to enlarge    
         
This machine is mechanically almost identical to the Monroe Mach 1.07. From Alex Knight. (Lange)