Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU347Linear
4053
4094
2
Polyphase Mannheim AdjustableKeuffel & EsserUSA
811
Engine divided celluloid laminated mahogany
"10"
1911
C5

Notes: Metal framed glass indicator. Model number 4053 added to left of slide. Patent notation added and font of company/city and patent notations reduced in size. L scale label removed.

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