Vintage Technical & Psychology Book Lot (Electronics, Math, Graphology)

Lot of four vintage mid-century technical and educational books: Basic Electrical and Electronic Principles (Suffern, 1962, 3rd Ed.) Handwriting Analysis (Bunker, 1959, 1st Ed.) Mathematics for Industry (Rusinoff, 1968, 3rd Ed.) How to Locate Skips and Collect (Tannrath, 1948, 2nd Printing) Each book shows expected shelf wear for age, with intact bindings and clean interiors. A unique set for collectors of vintage technical education, psychology, or business history.