second hand tools
METAL SLIDE RULE BY PICKET PLASTIC SLIDE RULE BY THORNTON

Seaton, Devon, England

 
 

TWO SLIDE RULES
A. A 12" METAL SLIDE RULE BY PICKETT U.S.A. MODEL. N3-ES. 50 mm WIDE.
IN MAKER'S LEATHER CASE. £18

B. A 12" PLASTIC SLIDE RULE BY THORNTON ENGLAND. MODEL No. AD050 50 mm WIDE. MARKED WITH PREVIOUS OWNER'S NAME ON UNDERSIDE. IN MAKER'S CASE. £10



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