![Herbert Hoover and three members of the Radio Conference, posed standing, full-length] - PICRYL - Public Domain Media Search Engine Public Domain Search](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MjQvMDEvMDEvaGVyYmVydC1ob292ZXItYW5kLXRocmVlLW1lbWJlcnMtb2YtdGhlLXJhZGlvLWNvbmZlcmVuY2UtcG9zZWQtc3RhbmRpbmctZnVsbC0xMDI0LmpwZw%3D%3D/320/255/jpg "Herbert Hoover and three members of the Radio Conference, posed standing, full-length] - PICRYL - Public Domain Media Search Engine Public Domain Search")
Herbert Hoover and three members of the Radio Conference, posed standing, full-length] - PICRYL - Public Domain Media Search Engine Public Domain Search
.jpg "Millions hear President Coolidge's congressional address on radio, Dec. 6, 1923 - POLITICO")
Millions hear President Coolidge's congressional address on radio, Dec. 6, 1923 - POLITICO
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