Coarsegold Historical Society & Museum - "R" is for Radio Italian inventor Guglielmo Marconi first developed the idea of a wireless telegraph in the 1890s. His ideas took shape when he sent
1,904 Dog Radio Images, Stock Photos & Vectors | Shutterstock
De Forest Wireless Telegraphy Tower: Bulletin #1 (1904)
Silvertone 1904 Tombstone (1935) - SOLD! - item number 1230014
American DeForest 1904 Receiver mod-pre26 DeForest Radio | Radiomuseum