London, Published by Cambridge University Press, 1913. First edition, 12mo,viii +143 including black & white photography diagrams and illustrations. Red cloth pictorial hardcover, spine faded, wear to spine at lower extremity, owner's inscription in pencil to free end paper. Else good. A work on the science, design and production of.....
USA, Published by The American Radio Relay League, 1955. First Edition, 8vo.pp.352 including many black & white photographs, diagrams, schematics, illustrations and advertisements. Pictorial softcover, some chipping and wear to cover creased in places and separated from internal pages, else good. Very good internally. This is quite an expansive work.....
London, Published by Cambridge University Press, 1911. First Edition, 16vo.pp.vii+144 including black & white photographs, diagrams, illustrations and index. Red cloth hardcover, Fading to spine offsetting to free endpapers, else good to very good. Very good internally.