BRITISH THORNTON VINTAGE P271 SLIDE RULE IN BOX

British Thornton Vintage Slide Rule AD 070 with Original Case 70s

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

British Thornton AD 150 Slide Rule With Case - Vintage

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

Charpentier Calculimetre Multidisc Circular Slide Rule

Slide Rule Vintage British Thornton

Litronix 2210 Slide Rule Calculator with Soft Case