| Image Thumbs | |
| Cert Num | 1366404 |
| Cert Date | 2019-10-28 |
| Catalog Number | 568a |
| Country | USA |
| Year | 1928 |
| Denom | 25c |
| Color | yellow green |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, top margin block of four with Plate No. F14063 on special booklet paper. |
| Cert Link | http://psestamp.com/Cert/1366404 |