国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 1月20日 23時02分

Today in 1945: FDR is inaugurated to an unprecedented and unmatched 4th term as President of the United States. His "fireside chats" aided in maintaining his popularity.
This RCA Type 50-A microphone had been saved by Carleton Smith, who both set up the microphone for NBC and introduced the radio broadcasts.

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