Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU119Linear
4092
4497
n/a
Log Log DuplexKeuffel & EsserUSA
27
Engine divided celluloid laminated mahogany
"10"
1913
C5

Notes: "Metal framed glass "column" style indicator. Company/city and patent notations on front side of slide rule below D scale. Exposed mahogany on edge."

Click on the Condition Code to obtain more details.