Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
K & E / Mannheim w/o number
Keuffel & Esser
Celluloid over wood
Est. 1910
25 cm

Notes: "This appears to be a K&E model 4041 Mannheim slide rule with no model number marking. It is late enough that there is enough length beyond the end of the scales to allow using a cursor with a centered hairline, rather than an all-brass chisel cursor. There is, however, only just enough length for that cursor. The date would be 1910, +/- 5 years. "

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