| Image Thumbs | |
| Cert Num | 1258397 |
| Cert Date | 2012-12-18 |
| Catalog Number | E11 |
| Country | USA |
| Year | 1917 |
| Denom | 10c |
| Color | Ultramarine |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 11817 block of six, pink back variety. |
| Cert Link | http://psestamp.com/Cert/1258397 |