Vintage SP Precision Sterling Slide Ruler Made in USA VGC

VINTAGE SP PRECISION STERLING 11” SLIDE RULE RULER USA

VINTAGE SP PRECISION STERLING SLIDE RULE RULER

SP Precision Sterling Slide Rule ~ VINTAGE Made In USA ~ 11" Long ~ *NO CASE*

Vintage Precision Sterling Slide Rule - Made In USA Drafting / Engineering Ruler

Vintage Sterling Precision Slide Rule With Case Made in USA Ruler

Vintage Precision Sterling Slide Rule Metric And Inch Sliding Ruler w/case

SP Sterling Precision 11" Plastic Slide Rule w/ Instructions & Case USA Vintage