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

Vintage Stanley Calculator / Fuller's Spiral Slide Rule / in Original Case

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

Vintage Fuller's Spiral Slide Rule or Calculator by John Davis with Case c1957

1970's Vintage BRITISH THORNTON Slide Rule Plastic Case Excellent

British Thornton AD 150 Slide Rule With Case - Vintage

British Thornton Vintage Slide Rule with Case

Vintage British Thornton Log Slide Rule AD050 With Case 1970s. IC