Radio Operating Questions and Answers

1940: McGraw-Hill (7th Ed., 14th Ptg.), 1940. Book. VG+. Hardcover. Seventh. 1940 Seventh Edition pale blue hardcover. Bright, tight copy w/liglht rubbing to extremities of cover, inked name/date inside, otherwise pristine & free from markings/marginalia within. VG+/no dustjacket.

New York: McGraw-Hill Book Company, 1936. xiv, 447pp, b/w ills, text-figures, addenda, two appendices, index. Or cloth boards, once-gilt spine titles now faded and hard to read. In this edition approximately 100 new questions have been added on Radio Laws, Transmitting, Receiving, Power Supply, and General Theory. . Sixth Edition Sixth Impression. Hard Cover. Very Good/No Jacket. 8vo.

New York: McGraw-Hill, 1929. Hardcover. Very Good. Second edition, revised and enlarged, second impression. 8vo, black cloth, very good, light wear & tanning, owner's namestamp (a few times) of a Peter Gramba in Ambridge PA as well as ownership information in pen, including his radio affliation: W8CRK. 267 pp, illustrated. Very early book on the subject.