| Image Thumbs | |
| Cert Num | 1280455 |
| Cert Date | 2014-02-28 |
| Catalog Number | 623 |
| Country | USA |
| Year | 1925 |
| Denom | 17c |
| Color | Black |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, top margin Plate No. F 18022 block of six (the bottom left, bottom right and top stamps never hinged). |
| Cert Link | http://psestamp.com/Cert/1280455 |