Vintage Unique LogLog Slide Rule Simplon Boxed with Instructions Made In England

Vintage Sun Hemmi Bamboo Engineering Slide Rule System mid section removes

Vintage mcl simplon slide rule

Vintage engineers slide rule Simplon Bilateral instructions tool Dargue Brothers

Vintage A G Thornton Slide Rule, Model P281, Made in England (1965)

Vintage Plastic Technical /Engineering 13cm Slide Rule with Case Made in England

'Unique' Universal II Slide Rule Made in England Vintage Measuring Tool

Vintage SIMPLON BILATERAL LOG-LOG Slide Rule Made in England 1950’s