The Radio Primer.
New York: Ralph T. Goodwin, 1922. 60 pp. 12mo. Paperback. "How to Make and Operate a Radiophone". Wear and soiling to covers, 1 1/2" tear to rear joint, bumping to spine ends and corners. Moderate soiling to pp. Spine repaired by seller. Good Paperback (Item ID: 130176)