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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4031 5″ Mannheim Frameless Glass Cursor – 541

Front
Front Gutter
Back
cm Scale
Cursor

End Stamp 541

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

CataLog Number: MHF-4, Location MHF-D1

Mike Frey Slide Rules
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