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Original file (474 × 661 pixels, file size: 83 KB, MIME type: image/jpeg)
Summary
| Description |
English: Original Caption: "MR. STUBBLEFIELD RECEIVING MESSAGES BY WIRELESS TELEPHONE. Note the two steel rods in the ground, which establish connection with the electrical currents of the earth, being connected by 30 feet [10 meters] of wire attached to the receiver." |
| Date | |
| Source | Appeared in the "Telephoning Without Wires" article in the 1902 edition of "The World's Progress in Knowledge, Science and Industry", edited by Trumbull White, page 298. |
| Author | Commercial publication |
Licensing
|
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 | 17:59, 8 January 2016 | | 474 × 661 (83 KB) | Thomas H. White | Higher quality image |
| 13:31, 7 January 2016 |  | 286 × 419 (23 KB) | Thomas H. White | User created page with UploadWizard |
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