| Clue | Source | Date |
|---|---|---|
| Legacy image files: abbr. | ||
| Some 53-Down files | New York Times | 12 Jan 2024 |
| Some image files | USA Today | 30 Dec 2023 |
| Alternatives to GIFs | New York Times | 17 Mar 2023 |
| Some PC image files | New York Times | 07 Dec 2018 |
| Some PC image files | ||
| Some online pics | ||
| Flickr files |