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Marian Anderson, contralto, singing on The Telephone Hour, an NBC radio program in 1943.. Courtesy: CSU Archives / Everett Stock Photo - Alamy
NBC Radio Microphone Used by President Roosevelt – All Artifacts – Franklin D. Roosevelt Presidential Library and Museum
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Eddie 'Rochester' Anderson on NBC radio, 1945. Courtesy: CSU Archives/Everett Collection Stock Photo - Alamy
N.B.C trade releases]. : National Broadcasting Company. : Free Download, Borrow, and Streaming : Internet Archive
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NBC Radio Collections - The National Broadcasting Company at the Library of Congress - Research Guides at Library of Congress
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1970 New Year's Eve ::: NBC Radio : SANWAL70 : Free Download, Borrow, and Streaming : Internet Archive
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What is Wrong with American prisons?" University of Chicago Round Table, NBC Radio, 22 February 1953 | JFK Library
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