Size of this preview: 661 × 600 pixels. Other resolutions: 265 × 240 pixels | 529 × 480 pixels | 847 × 768 pixels | 1,129 × 1,024 pixels | 2,348 × 2,130 pixels.
Original file (2,348 × 2,130 pixels, file size: 269 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 | The secret transfer of documents became very difficult during the Cold War. Agents relied on the microdot camera to photograph and reduce whole pages of information onto a single tiny piece of film. This piece of film could be embedded into the text of a letter as small as a period at the end of this sentence. Microdots were also hidden in other things such as rings, hollow coins, or other mailed items. The recipient would read the microdot with the aid of a special viewer, often cleverly concealed as well. |
| Date | |
| Source |
|
| Author | Central Intelligence Agency |
Licensing
|
This image is a work of a Central Intelligence Agency employee, taken or made as part of that person's official duties. As a Work of the United States Government, this image or media is in the public domain in the United States.
|
|
|
This image, originally posted to Flickr, was reviewed on March 11, 2011 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:36, 5 October 2019 | | 2,348 × 2,130 (269 KB) | Belbury | Cropped 53 % horizontally, 36 % vertically using CropTool with lossless mode. |
| 13:01, 11 March 2011 |  | 4,996 × 3,322 (613 KB) | File Upload Bot (Magnus Manske) | {{Information |Description=The secret transfer of documents became very difficult during the Cold War. Agents relied on the microdot camera to photograph and reduce whole pages of information onto a single tiny piece of film. This piece of film could be e |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on es.wikipedia.org
- Usage on no.wikipedia.org
- Usage on ru.wikipedia.org
