Editore: Scranton, PA: International Texbook Company, (1935)., 1935
Da: OLD WORKING BOOKS & Bindery (Est. 1994), West Brookfield, MA, U.S.A.
Membro dell'associazione: SNEAB
Prima edizione
Illustrated by b&w cuts: 30 fiures; 32 figures. 3501, 3502 First edition. N173B (81078). Original black blind-stamped cloth, marbled eps, gilt print spine all edges blue. 8vo. pp. 52; 67. Near Fine. Trace rub/bump to caps and corners; internally and unusually fine. Author was member of the Radio Club of America and an Associate Member, Institute of Radio Engineers Numbered concise sections per title 73 and 89 respectively.