| Image Thumbs | |
| Cert Num | 1199579 |
| Cert Date | 2009-04-10 |
| Catalog Number | 440 |
| Country | USA |
| Year | 1915 |
| Denom | 50c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four (the top right and bottom left stamps never hinged), with a natural paper inclusion in the bottom left. |
| Cert Link | http://psestamp.com/Cert/1199579 |