VINTAGE P.I.C. A.G.THORNTON 121 SLIDE RULE & CASE

Vintage A.G. Thornton Electrical Slide Rule P.I.C. No. 121 27cm 10" Boxed. GC

Vintage PIC Slide Rule No 251 British Thornton in Leather Case. Made In England

Thornton Slide Rule

Vintage Slide Rule A. G. Thornton Ltd 4865 vintage rare 131 with box

A Boxed Vintage Slide Rule PIC No 131 by AG Thornton Ltd Made in England

Thornton plc Student log log slide rule calculator No. 271 in original case, vgc

A G Thornton vintage slide rule including case - good condition