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Deutsche Version
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TCoCD Pictures Mechanical Calculators Contex n.n.

Contex n.n.
Contex n.n. (click for larger image, 71k)
top view (click for larger image, 71k)
manufacturing date  
digits:   entry
  result
  counter
8
9
-
entry half full keyboard (1-5)
mechanism direct adder
operation manual
size:   width
  length
  height
  weight
235 mm
235 mm
68 mm
1.71 kg
Contex n.n.: side view
side view
Contex n.n.: open bottom (click for larger image, 137k)
open bottom (click for larger image, 137k)
TCoCD Pictures Mechanical Calculators Contex n.n.

back to the main page  Contex  previous calculator: 30  The Collection of Calculating Devices  no next calculator 
Deutsche Version
Deutsche Version

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