Vintage Soviet Russian Ruler Calculator

Description

It is the Soviet compute adding machine slide rule ADDIATOR
+ CASE+STYLUS
This slide rule was made in the USSR ( in the 1960s) in Leningrad at the counting device factory.
Stylized Russian letters "S and P" are visible on the device under the inscription " subtraction"
The same factory produced the first Soviet arithmetic meters (model "Felix").
Also on this slide rule there is an image of a three-masted ship, the
symbol of St. Petersburg .
This slide rule allows you to perform simple arithmetic operations such as addition, subtraction,
by inserting the stylus into the corresponding holes on the ruler
and shifting the various parts of the ruler relative to each other, you can subtract or add.
The product is in good condition, works properly, the stylus is included.
The rule is sold with the original case.
The rule material is steel.
Size: Length-16 cm (6.3 inches).
Width-3.8 cm (1.52 inches).