Keuffel Esser 68 1100 Deci-Lon 10 slide rule full set 1960 USA

This is a high quality build slide rule with elaborate calculation options through 26 different scales. This great rule also come in the original box with the original leather case, the hard cover instruction book as well as additional paperwork. This Deci-Lon model is the best slide rule made by Keuffel + Esser Company from the USA before the went out of business. It is rarely seen in Europe since it had to compete with the Faber Castell 2/82N and 2/83N slide rules. This K+E rule is in great condition, hardly used, if any and the extra items in the box are kept very well and look close to new. The card board box did it’s job well in protecting everything inside but sufferd a bit from storage. The box is complete with small tears and tape on the corners, as well as folds and and scuffs. This model Deci-Lon 10 measures ca. 31 cm or 10 inches wide. Check the attached video on how to work your vintage man tool : slide rule operation instructions!