| Image Thumbs | |
| Cert Num | 1360435 |
| Cert Date | 2019-04-11 |
| Catalog Number | C22 |
| Country | USA |
| Year | 1937 |
| Denom | 50c |
| Color | Carmine |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, full wide top margin Plate No. 21624 block of six. |
| Cert Link | http://psestamp.com/Cert/1360435 |