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KEUFFEL & ESSER Vintage SLIDE RULE N4053-3 c1944 in LEATHER CASE Original Box
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Keuffel and Esser Slide Rule Model N4053-3 10.75"L Vintage USA Made
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VTG Keuffel & Esser Co N.Y. 10" Slide Rule N4053-3 with Hard Leather Case 1932
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