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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4053-3 10″ Polyphase Mannheim – 21

Front

Gutter

Back

k Scale

in Scale

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

Catalog Number: MHF-57, Location: MHF-D2

Mike Frey Slide Rules

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