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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4035-3F 10″ Polyphase Mannheim with fine divisions – 472X – 4085B Magnifier

Front
Gutter
Back
k Scale
in Scale

Clark McCoy’s K&E Catalogs – 4053 information page

Catalog Number: MHF-59, Location: MHF-D2

Mike Frey Slide Rules
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