Nestler 11-ZR – Closed Simplex Slide Rule
Accession Number: 2010.lej.21
A 5″ Mannheim type slide rule made entirely of plastic in the System Rietz style. There are four scales at the front, with three scales at the back of the slide. The back of the stock contains the name of manufacturer and model number of this slide rule. There is an inch scale on the side of the slide rule. This Albert-Nestler Nr.11 was packaged in a sleek leather case with the companyʼs logo in it. Scales: The scales on the front surface of the slide rule are not named. However, they are likely K, A [ B, CI, C ] D, L (from www.sliderulemuseum.com/Nestler.htm, accessed 2010). At the back of the slide, the three scales are S, S&T and T.
Primary Materials: Plastic
Old Inventory Number = 21.
Markings: “Nr. 11 ZR ALBERT NESTLER A-G LAHR, G. B. Moxon” (presumably a previous ownder) is written on the bottom face.
Dimensions (cm): Height = 3, Width = 3, Length = 14.2
Function: For facilitating calculations.
Very good: yet, it is apparently missing a glass cursor.
Manufacturer: Albert Nestler A-G. Lahr i/B B.
Date of Manufacture: c. 1952-1972