Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU057Linear
4071-3
4568
n/a
Polyphase Duplex DecitrigKeuffel & EsserUSA
840912
Engine divided celluloid laminated mahogany
"10"
1952
C6

Notes: "Improved glass indicator. K&E stylized logo added with . Scale legend (range of possible values for the function) added to right of each trig scale. Exposed mahogany edge with center celluloid strip. Patent #2,500,460 replaces #1,930,852."

Click on the Condition Code to obtain more details.