| Image Thumbs | |
| Cert Num | 1323598 |
| Cert Date | 2016-11-01 |
| Catalog Number | E11 |
| Country | USA |
| Year | 1917 |
| Denom | 10c |
| Color | Ultramarine |
| Grade | Ungraded |
| Description | Mint RG |
| Opinion | it is a genuine unused, REGUMMED, bottom margin Plate No. 11815 block of six pink back variety, with minor perf separations at the top the bottom right stamp with a crease ending in a small tear at the right. |
| Cert Link | http://psestamp.com/Cert/1323598 |