| Image Thumbs | |
| Cert Num | 1227550 |
| Cert Date | 2010-09-17 |
| Catalog Number | E11 |
| Country | USA |
| Year | 1917 |
| Denom | 10c |
| Color | Dark ultramarine |
| Grade | Superb 98 |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged, 'pink back' variety. |
| Cert Link | http://psestamp.com/Cert/1227550 |