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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU193Linear
4088-5
4307
1
Polyphase DuplexKeuffel & EsserUSA
95
Engine divided celluloid laminated mahogany
"20"
1922
C5

Notes: Frameless glass indicator with plastic guides. Scales on reverse of slide changed to B S T CI. Model number on slide rule is 4088-5 even though scales have changed.

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