Archives:KDKA Letter, 1921

KDKA Letter, 1921: Archival documents

Westinghouse Electric, Radio Broadcasting from East Pittsburgh, Feb. 18, 1921.

Open letter inquiring about reception of radio broadcast from KDKA, KDKA Letter, 1921, Box HB-013

IEEE Archives, Piscataway, NJ

KDKA Letter, 1921 (pdf)