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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4097C 5″ Mannheim “EverThere” Slide rule –  “4053-3 like” – 27706

Very fragile – severe KERCS – Slide cannot be removed

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Clark McCoy’s K&E Catalogs – “Ever-There Slide Rules” Information page

Catalog Number: MHF-086, Location: MHF-D3

Mike Frey Slide Rules
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