radiotelegraphy is the transmission of text messages (Morse code) by radio waves, D.R.P., wood, metal, Germany, the 1st half of the 20th cent., h 14 x 6.2 x 10.8 cm
| title: | radiotelegraphy is the transmission of text messages (Morse code) by radio waves, D.R.P. |
|---|---|
| material: | wood |
| material: | metal |
| country: | Germany |
| period: | the 1st half of the 20th cent. |
| dimensions: | h 14 x 6.2 x 10.8 |
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