Size of this preview: 800 × 492 pixels. Other resolutions: 320 × 197 pixels | 640 × 394 pixels | 1,024 × 630 pixels | 1,615 × 993 pixels.
Original file (1,615 × 993 pixels, file size: 385 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Photograph included in the article "Increasing the Revenue Producing Efficiency of a Plant" by Stanley R. Edwards, from page 21 of the October 11, 1913 issue of Telephony magazine. Original caption was "Equipment for Transmitting Bulletins and Record Music". |
| Date | |
| Source | Photograph included in the article "Increasing the Revenue Producing Efficiency of a Plant" by Stanley R. Edwards, from page 21 of the October 11, 1913 issue of Telephony magazine. |
| Author | Magazine article |
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
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:37, 5 May 2016 | | 1,615 × 993 (385 KB) | Thomas H. White | User created page with UploadWizard |
File usage
The following page uses this file:
