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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4031 5″ Mannheim Frameless Glass Cursor – 92607

Front
Front Gutter
Back
cm Scale

Serial Number 92607

Clark McCoy’s K&E Catalogs – 4031 Information page

Catalog Number: MHF-7, Location MHF-D1

Mike Frey Slide Rules
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