| Image Thumbs | |
| Cert Num | 1290475 |
| Cert Date | 2014-10-29 |
| Catalog Number | C27 |
| Country | USA |
| Year | 1941 |
| Denom | 10c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, upper left margin Plate No. block of four with a couple gum adhesions. |
| Cert Link | http://psestamp.com/Cert/1290475 |