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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4041 10″ Mannheim – 606

Front
Gutter
Back
in Scale
cm Scale

End Stamp 606

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

Catalog Number: MHF-595, Location: MHF-D1

Mike Frey Slide Rules
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