Ruhmer, Ernst [Walter. b. 1878]. Erskine-Murray, James [b. 1868] - Translator - WIRELESS TELEPHONY In Theory and Practice. Translated from the German. With an Appendix by the Translator

New York / London: D. Van Nostrand Company / Crosby Lockwood and Son, 1908. 1st Edition in English. Green cloth binding with gilt stamped title lettering to spine & front board. xii, 224 pp (including indexes & bibliographical references [215 - 217]). Illustrated. 8vo. Square & tight. Light wear. Period pos to t.p. top margin. A VG+ copy.