Intended for performing mathematical operations. Cosmetic condition is very good. Glass is clean, no damage. My post office does not operate on Saturday and Sunday.
Otherwise we can't guarantee availability of it. The item "Circular slide rule USSR KL-1 Soviet calculator mathematics EXL" is in sale since Saturday, January 2, 2021.
This item is in the category "Collectibles\Science & Medicine (1930-Now)\Engineering\Slide Rules". The seller is "anna_antik" and is located in Slavyansk. This item can be shipped worldwide.