| Image Thumbs | |
| Cert Num | 1333446 |
| Cert Date | 2017-07-27 |
| 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, bottom right margin block of ten (5x2) with Plate No. 21625, and a natural gum crease in the bottom right stamp. |
| Cert Link | http://psestamp.com/Cert/1333446 |