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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU559Linear
4031
4519
n/a
Mannheim AdjustableKeuffel & EsserUSA
61
Engine divided celluloid laminated mahogany
"5"
1914
C5

Notes: "Indicator changed to frameless glass indicator with metal guides. Also, patent notation found in slide well on previous variants has been moved to the front of slide rule below D scale between 2 and 3."

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