Image: 1910 Mariette Mazarin broadcast
1910_Mariette_Mazarin_broadcast.jpg (470 × 476 pixels, file size: 34 KB, MIME type: image/jpeg)
Description: Photograph of a February 24, 1910 radio broadcast, from Lee DeForest's laboratory in New York City, by Mme. Mariette Mazarin of the Manhattan Opera Company. From "A Review of Radio" by Lee DeForest, page 333 of the August, 1922 issue of Radio Broadcast.
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