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PASCAL-TYPE CALCULATORS



With the stylus, ADDITION with 10s-Carry will be performed by using
the outer big figures, turning the wheels clockwise. SUBTRACTION w.
10s-Carry uses the inner small figures, turning the wheels counter-
clockwise.   There is NO RESET LEVER for the register and NO HOLDER
for the stylus.

The picture shows two equal machines:

With its FRONT SIDE (and its box: W*D*H = 20.5 cm * 7 cm * 1.2 cm )
the » Dial-A-Matic «  by STERLING, Mountainside, NJ / USA    (1965)

and the  ACRYLIC version  by HARRISON, Weston, MA / USA   (1968/82)
with its BACK SIDE.

impressum:
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© C.HAMANN    http://public.beuth-hochschule.de/~hamann    11/11/07