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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU635Linear
N4041F
4661
n/a
Mannheim AdjustableKeuffel & EsserUSA
111711
Engine divided celluloid laminated mahogany
"10"
1924
C4

Notes: Framed widened 10% (31mm to 34mm). Model number changed to N over <4041F> and moved to right end of slide. Scale labels added to front scales in non-serif font. Annotations moved from below D scale to above A scale. MADE IN U.S.A. added.

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