Vintage Keuffel & Esser (K&E) Deci-Lon 10-inch slide rule, model 68 1100, complete with its original-style brown carrying case.Made in the USA, this precision calculating instrument features numerous mathematical and engineering scales, a sliding center section, and a transparent cursor with a red indicator line.An excellent collectible for vintage scientific instrument enthusiasts, engineers, mathematicians, and anyone interested in the history of pre-calculator computing.FEATURES:- Manufacturer: Keuffel & Esser Co. (K&E)
- Model: Deci-Lon 68 1100
- Type: 10-inch engineering slide rule
- Made in USA
- Copyright markings: 1947 and 1961
- White body with black and red mathematical scales
- Transparent sliding cursor
- Metal end brackets
- R.G. Dilworth engraved on metal end pieces
- Brown protective carrying case with flap closure and Deci-Lon branding
- Case measures approximately 12 inches longCONDITION:Pre-owned vintage condition with visible signs of age and previous use.The slide rule displays surface discoloration, staining, spotting, and accumulated residue, particularly around the transparent cursor and metal components. The metal hardware shows oxidation and age-related wear.The brown carrying case has visible surface wear, scratches, scuffs, and edge wear, particularly along the flap and stitching.The slide rule's center section is shown extended in the photographs. Accuracy and calibration have not been verified.Please carefully review all photographs for the exact cosmetic condition, markings, and included accessories.VINTAGE ITEM NOTE:This is a previously owned vintage item and may exhibit age-related wear, surface imperfections, discoloration, or other characteristics consistent with its age and history. Vintage items may also retain storage-related odors, and individual sensitivity to odors varies. Please review all photographs and the description before purchasing.✨ Carefully packed and shipped from OctoGremli Trading Co. — where the weird, wonderful, forgotten, and fabulous get another chance to be loved.
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