| Image Thumbs | |
| Cert Num | 1216413 |
| Cert Date | 2010-01-26 |
| Catalog Number | 422 |
| Country | USA |
| Year | 1912 |
| Denom | 50c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four (the top stamps and the selvage previously hinged, the bottom stamps never hinged), with a light natural gum crease at the bottom right of the bottom right stamp. |
| Cert Link | http://psestamp.com/Cert/1216413 |