Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU055Linear
4097D
4374
1
Ever-ThereKeuffel & EsserUSA
64179
Engine Divided White Xylonite
"5"
1942
C6

Notes: "Same scale set seen on some K&E mystery slide rules. Model number on left end of slide. Patent notation on right end above slide, company notation on right end of slide, MADE IN U.S.A. below slide on right end. "

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