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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU650Linear
4161-1
4451
n/a
Pocket Slide RuleKeuffel & EsserUSA
44215
Ivorite Precision Molded ABS
"5"
1955
C2

Notes: "Same as the 9061-1, but with model number change and stylized K&E logo replacing DORIC. Mandril number C1. on reverse of slide."

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