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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU154Linear
n/a
4630
1
AmericanKeuffel & EsserUSA
29
Engine divided celluloid laminated boxwood
"10"
1898
C4

Notes: Early forerunner of model 4054. Unlisted in K&E catalogs. Has window cutout to read reverse of slide only on right side of sliderule. Indicator is wider than on later 4054 rules.

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