Nestler 23R Einstein slide rule in wood display case 1930 Germany

Preferred by Albert Einstein and Werner von Braun is this the world famous model Nestler Rietz 23R. This is the early 1930’s version with screw in the ends. It also comes in a beautiful wooden Nestler presentation box. So it would make a beautiful gift beside a great place in history and a wonderful story. I have more of these so I the specific item you get may vary a little from the pictures. I will make sure that the slide rule, and cursor as well as the wooden case will always be fully original, complete and without any imperfection, cracks or breaks. When preferred you can also contact me directly for pictures. The Nestler 23R model you will receive is made in the 1930’s from wood with celluloid white top and real glass cursor in a metal setting. It measures 28,5 cm or 11.5 inches in length. Do also read the article on world famous slide rules for reference and check the attached video below on how to work this vintage man tool and feel like Einstein.