| Image Thumbs | |
| Cert Num | 1366398 |
| Cert Date | 2019-10-28 |
| Catalog Number | 564b |
| Country | USA |
| Year | 1928 |
| Denom | 12c |
| Color | brown violet |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin Plate No. 18921 block of six on special booklet paper, the right three stamps with small natural gum skips. |
| Cert Link | http://psestamp.com/Cert/1366398 |