on Oct 31, 2015
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| DESCRIPTION | Nice Vintage 1920’s Keuffel & Esser 4092-3 ten-inch mahogany two-sided linear slide rule coated with white celluloid, and held together with L-shaped metal end pieces | | SIZE/WEIGHT | Just over 12.5” in total length | ‘08 APRIL 1. ‘24 MADE IN U.S
Weighs 7 oz inside the leather case
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