| Image Thumbs | |
| Cert Num | 1194959 |
| Cert Date | 2009-01-30 |
| Catalog Number | 509 |
| Country | USA |
| Year | 1917 |
| Denom | 9c |
| Color | Salmon red |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. F 12572 block of six. |
| Cert Link | http://psestamp.com/Cert/1194959 |