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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU288Linear
4041
4658
2
Mannheim AdjustableKeuffel & EsserUSA
5
Engine divided celluloid laminated mahogany
"10"
1901
C6

Notes: Cut out added on left of slide rule in addition to one on the right to read scales on reverse of slide. Pi (?) gauge mark added to A and B scales.

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