This historic adding machine (W*D*H = 8 cm * 20.5 cm * 3.5 cm ; 770 g)
came without its box and its stylus.  A STYLUS is home-made of an old
pen and a HOLDER is made of a clippable aluminum strip.

For CLEARING the arithmetic unit,  pull the right wheel  and turn it
counter-clockwise until STOP and than back clockwise until SNAP-BACK. 

The COMPTATOR performs ADDITION.  SUBTRACTION  has to be made as 9-
Complement "Addition".  For DETAILS see  BURROUGHS ...


HISTORICAL REMARKS                    Serial Number = 20066   ( 1920 )
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                       adopted from   http://www.bluemich.net/rechner/

The ARITHMETIC UNIT are "ToothWheels" on a common axle. They are moved
forward by the toothed column levers pulled down with the stylus.  Two
versions with 9 or 13 columns exist.  Hans Sabielny, Dresden / Germany
improved the »RapidComputer«  made by Adding Maschine, Michigan / USA,
got patents for and let it produce as »COMPTATOR« by Schubert & Salzer
in Chemnitz.  From 1922 he produced it in his own factory in Dresden.

impressum:
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© C.HAMANN         http://public.BHT-Berlin.de/hamann         09/23/09