Archives:KDKA Letter, 1921
From ETHW
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)
