Thornton 10" Slide Rule P271 Log Log Made in England with Case Instructions

British Thornton AD 150 Slide Rule With Case - Vintage

Vintage British Thornton Slide Rule No. P271 Log Log with case 1968

Slide Rule Vintage British Thornton

BRITISH THORNTON VINTAGE P271 SLIDE RULE IN BOX

British Thornton AD 050 1970s Vintage Log Slide Rule + Hard Case

1960s Vintage British Thornton AD 050 Slide Rule In original plastic case.

3 X Vintage A.G Thornton PIC Slide Rules in original red and green boxes.