Keuffel Esser 68 1130 Deci-Lon 5 pocket slide rule case 1970 USA

This is a pocket size high quality build slide rule with elaborate calculation options through 26 different scales. This great rule also come in the original leather case that is also signed Decilon 5. 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 a later model without the small ribbed red / black ends on the slider, ca. 1970’s. It is rarely seen in Europe since it had to complete with the Faber Castell 62/82N and 62/83N pocket slide rules. This K+E rule is in good condition, with some signs of use and age. Te Leather case is complete with belt hook, some scuffs. This model Deci-Lon 5 measures 18,5 cm or 7 1/4 inches wide. Check the attached video on how to work your vintage man tool : slide rule operation instructions!