Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU026Linear
4055
4147
3
FavoriteKeuffel & EsserUSA
624822
Engine divided celluloid laminated mahogany
"10"
1938
C3

Notes: Logarithm scale numbering on reverse of slide changed from 0-10 in unit increments to 0-1 in one-tenth increments.

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