-40%
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20
Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20

Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20" Antique Vintage

$ 42.23

Availability: 42 in stock
  • Country/Region of Manufacture: United States
  • Condition: Used

    Description

    Keuffel & Esser Co. K & M Polyphase Slide Rule 4051 20" Antique Vintage.
    Slide rule is in good condition and slides like it should. The case has wear and looks to be missing a piece.
    Was a daily driver for an engineer before calculators.