Electromechanical calculating machines from the 1960's
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Rotary calculators
Badenia VA-17
Badenia VARE-17
Bohn Contex 55
Cellatron R44SM
Diehl DSR-18
Diehl VSR-18
Facit CA1-13
Friden SBT
Friden SVE
Friden SRW
Friden SRQ
Friden RSR
Hamann 505
Madas 20 BTG
Marchant ABL
Marchant SKA DeciMagic
Marchant Tenkeymatic
Monroe IQ-213
Olympia RA-16

Soemtron 214

Printing calculators

Mechanisms

Glossary

Other calculating devices

References and links

Acknowledgements

Wanted

 
Diehl DSR-18        
 
Manufacturer
  Diehl G.m.b.H.
Nürnberg, Germany
 
Mechanism
  stepped drum
 
Capacity
  9 x 9 x18
 
Years produced
   
 
Price when new
  DM 4250 ($1057) in 1961
 
Size (W x D x H)
  in.
cm.
 
Weight
  lb. oz. (kg)
 
Features
 

visible memory register
back transfer
semi-automatic shortcut multiplication

  click on photo to enlarge    
         
History of Diehl company, Archimedes license, semi-automatic, shortcut multiplication, superbly crafted, visible memory register, back transfer. Improvements over the Archimedes . . . (Reese, Diehl website)