Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU227Linear
4041
4677
3
Mannheim AdjustableKeuffel & EsserUSA
173
Engine divided celluloid laminated mahogany
"10"
1919
C6

Notes: "Subtle changes to conversion table on rear of sliderule: a vertical line is added in the fourth column of the conversion table on the back of slide rule; gallons, feet, inches, rad, radius, and pounds have first letter capitalized."

Click on the Condition Code to obtain more details.