Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU473Linear
N4041
4078
1
Mannheim AdjustableKeuffel & EsserUSA
480444
Engine divided celluloid laminated mahogany
"10"
1935
C5

Notes: Unmarked and unfinished slide rule with no model number (although clearly N4041) and a slide that extends 13mm beyond the right end of the frame.

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