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Summary
| Description |
English: Black-and-white image of several men wearing early 20th century headphones, learning Morse code together |
| Date | |
| Source | Derived from File:Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg originally published 1922 |
| Author | Lescarboura, Austin C. (Austin Celestin), 1891- |
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This file was derived from: Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:00, 2 April 2023 | | 3,059 × 1,669 (2.79 MB) | Bri | Uploaded a work by Lescarboura, Austin C. (Austin Celestin), 1891- from Derived from File:File:Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg originally published 1922 with UploadWizard |
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File usage
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