It is indeed a fantastic item and it measures 14.7 cm long and 3 cm width. It is a very rare and collectable item. This kind of articles were used before the calculator.
We hope you enjoy it. PLEASE DO NOT HESITATE ASKING US IF YOU HAVE ANY QUESTIONS. The item "Lot of 10 Vintage Koh-I-Nor Slide Rule withCase & Papers, NOS (Ref. # x2427)" is in sale since Sunday, December 23, 2018.
This item is in the category "Collectibles\Science & Medicine (1930-Now)\Engineering\Slide Rules". The seller is "penpartsstore" and is located in Miami, Florida. This item can be shipped worldwide.