1931 RCA Radiotron Radio Log, booklet from RCA for radio listeners and buyers. 72-pages plus cover. Great early radio reference, lists stations across the country, radio celebrities of the day, radio maintenance, including tube guide, etc. Cover has dog-ear, minor foxing, stains on cover and first three pages, cover torn at spine. Very readable, interesting early radio reference. Has " John Reichel Negaunee, Mich." on back cover, the RCA dealer in town. Measures 6' X 3.5".  See pictures for detail and condition.