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Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU163Linear
4181-1
4229
n/a
Decitrig PocketKeuffel & EsserUSA
22947
Ivorite Precision Molded ABS
"5"
1953
C5

Notes: Pocket model version of the K&E 4181-3 Decitrig. All slide rule markings black. Mandrel numbers A1 (front) and B1 (back) on left end of slide.

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