Science and Invention (1920-1931 Experimenter Publishing) Vol. 11 #3
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Published Jul 1923 by Experimenter Publications.$20.00
View scansJuly 1923. Edited by Hugo Gernsback. General interest science and technology magazine, both imagined and real. Profusely illustrated. 8 1/2-in. x 11 1/2-in., 104 pages, B&W. Cover price $0.25.