Full Details


Name and Model Number Keuffel & Esser 1748
Mannheim
Country of Origin Made by Dennert & Pape in Germany for K&E
Date of Manufacture 1897 to 1901
Front Scales 50 cm/ A [ B C ] D
Back Scales S L T
Scale Length 50 cm
Type of Rule Slide Rule
Construction Closed frame mahogany; celluloid laminate. With beveled edge. Cursor missing.
Area of Use Generic
Comment No model number given.
Ladder scales, mahogany frame with D&P stamp in well beneath the slide indicate a date of c. 1900.
Only the K&E 1897 & 1899 catalogs carry a Model 1748 that fits the description of this example.
Also came with brass chisel cursor as Model 1748.
Rarity RR-RRR
Donor Collection of Ed Chamberlain
Match Number 132
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In conjunction with our 'donors' we assign a rarity rating to each item, based on the system devised by Herman van Herwijnen
(1929 - 2004), renowned Dutch collector, author, and creator of Herman's Archive, a collection of 5,000 slide rule images on CD.
• RR = Rare - 1 of 25 collectors has one; it may take a year to find an example in the marketplace.
• RRR = Very Rare - only a few known to collectors; may be several years before it comes up for sale.
• RRRR = Extremely Rare - a museum piece; unlikely that an example will come up for sale.