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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4041 10″ Mannheim – 53 – Metal Cursor Blocks

Front
Front Gutter
Back
cm Scale
in Scale
Cursor – Metal Blocks

End Stamp – 53

Clark McCoy’s K&E Catalogs – 4041 Information page

Catalog Number: MHF-16, Location MHF-D1

Mike Frey Slide Rules
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