| Image Thumbs | |
| Cert Num | 1300317 |
| Cert Date | 2015-04-17 |
| Catalog Number | Q10 |
| Country | USA |
| Year | 1913 |
| Denom | 50c |
| Color | Carmine rose |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, left margin block of four with Plate No. 6427. |
| Cert Link | http://psestamp.com/Cert/1300317 |