Vintage Pickett 9070-ES Slide Rule w/ Leather Case (Missing Flap?) & Asimov Book

Item: • Vintage Pickett Model 9070-ES slide rule • Original brown leather case with embossed Pickett logo (flap/closure appears to be missing) • Companion paperback book: An Easy Introduction to the Slide Rule by Isaac Asimov (1965, Fawcett Premier) Condition: • Slide rule shows light age wear, slides smoothly, clear markings • Leather case intact but shows creasing/wear; hardware at top indicates flap/closure is missing • Book has age toning to pages and cover Details: • Slide rule marked "9070-ES" • Case fits securely as an open sheath without flap • Book is the complete text of the original hardcover edition, 160 pages Notes: A great collectible set for engineers, mathematicians, vintage calculator enthusiasts, or Isaac Asimov fans.