| Image Thumbs | |
| Cert Num | 1377893 |
| Cert Date | 2020-06-24 |
| Catalog Number | 556 |
| Country | USA |
| Year | 1923 |
| Denom | 4c |
| Color | Yellow brown |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 16367 block of six. |
| Cert Link | http://psestamp.com/Cert/1377893 |