YEAH FOR MAY SHOWERS!!
This lot is closed for bidding. Bidding ended on 5/21/2015
Vintage wooden duplex slide rule with leather case, model 4093-3! This tool is in good vintage condition and slides nice and smooth. Patented March 25, '24 April 1, '24.
VINTAGE KEUFFEL & ESSER CO. DUPLEX SLIDE RULE IN LEATHER CASE
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