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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU637Linear
4053-5
4130
n/a
Polyphase Mannheim AdjustableKeuffel & EsserUSA
50
Engine divided celluloid laminated mahogany
"20"
1913
C5

Notes: Metal framed indicator. First version of 4053-5. Model number on left side and scale labels on right side.

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