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TOY  ADDING  MACHINE



W*D*H = 6" * 8_3/4" * 4_1/4"  ;                  1_1/4 lbs = 570 g
      = 15 cm * 22 cm * 11 cm

The TOY ADDING MACHINE is made of sheet metal and is operated with
fingers.  There is NO RESET lever:  All digits have to be reset to
ZERO individually.  Only  ADDITION  is performed.  For SUBTRACTION
9-Complement "Addition" has to be used.  ( For DETAILS see the
INSTRUCTIONS  to the  BURROUGHS  CALCULATOR ... )

WOLVERINE SUPPLY & MFG. CO.  Pittsburgh, Pennsylvania / USA (1950)

impressum:
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© C.HAMANN    http://public.beuth-hochschule.de/~hamann   07/13/10