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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU081Linear
4088-3
4302
1
Polyphase DuplexKeuffel & EsserUSA
66583
Engine divided celluloid laminated mahogany
"10"
1923
C5

Notes: B scale added to upper edge on back side of slide. Model number moved to right end of slide. MADE IN U.S.A. added below D scale on right. Patent notation moved below D scale between 2 and 3.

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