Marked: (tag) "Regenerative Receiver / Crosley Model 52 / Manufactured under license under Armstrong U.S. Patent 1113149, October 6, 1914. / The Crosley Radio Corporation / Cincinnati, Ohio / Serial ...
Marked: "Manufactured under license under Armstrong U.S. Patent No. 1113149, Oct. 6, 1914, for radio amateurs for use in radio amateur stations; for radio experimenters and scientific schools or ...
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