Antique K & E Keuffel Esser N4058W Slide Rule black leather case, 11.2" long For Sale
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Antique K & E Keuffel Esser N4058W Slide Rule black leather case, 11.2" long: $11.50
Antique K & E Keuffel Esser N4058W Slide Rule black leather caseslide rule has wood backing (see photo) case is 11.2" longslide rule is 10.75" longGood condition