Original Very rare Vintage Soviet Russia. Made in Soviet Union - USSR. Diameter dial about 45 mm.Made in USSR, 60s, Moscow. This rule is made by the Soviet Union control devices. For the Ministry of Instrumentation of the USSR. Extraction of a square root. Finding of trigonometric functions of a sine. Finding of trigonometric functions of a tangent. Finding inverse trigonometric functions (of sines and tangents). Calculation of the area of a circle. Great item for the collectors. The perfect gift for scientists, mathematicians, students. Look at the actual photos! You get what you see. See Photo for all details. Come to my store, I have a lot of interesting things! We will send the items to anywhere in the world. The item "Vintage Circular Slide RULE LOGARITHMIC Soviet Union Russia 1965 made in USSR" is in sale since Friday, August 6, 2021. This item is in the category "Collectables\Scientific Collectables\Scientific Instruments\Other Scientific Instruments". The seller is "alesmibla" and is located in Dnipropetrovsk.
This item can be shipped worldwide.