Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU636Linear
4041F
4065
2
Mannheim AdjustableKeuffel & EsserUSA
893X
Engine divided celluloid laminated mahogany
"10"
1913
C4

Notes: Same as variant #1 except the 80 degree number on the sine scale has been dropped and the company annotation has moved to the right between 2 and 3 below the D scale.

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