Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU012Linear
4070-3
4566
n/a
Polyphase Duplex TrigKeuffel & EsserUSA
313487
Engine divided celluloid laminated mahogany
"10"
1957
C4

Notes: added above K&E stylized logo and K&E removed from right end of slide reverse. Exposed mahogany on edge of slide rule with celluloid strip down the middle.

Click on the Condition Code to obtain more details.