Vintage PIC Slide Rule 1960s In Original Box.

Aristo Simplex 911 Slide Rule Made in Germany 1962 + Case Box & Instructions

Rare vintage Stanley Stay Rule (circular slide rule - GPO / War Department)

Vintage Faber Castell Slide Rule w/ Case Logarithmic Calculator Engineer Tool

Lawrence Engineering Service Wooden Slide Rule Made in USA Original Box

4 Vintage Calculators Fearns Mears Cummins Electric Shaft Size Horsepower

Blundell (BRL) Tarrant Hydraulic Flow slide rule, UNUSED & based on Academy 306

Vintage Rockwell 31R 'Slide Rule Memory' 1975 with Original Case Made In England