| Image Thumbs | |
| Cert Num | 1374649 |
| Cert Date | 2020-03-31 |
| Catalog Number | E11 |
| Country | USA |
| Year | 1917 |
| Denom | 10c |
| Color | Ultramarine |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, top margin Plate No. 5520 and Imprint block of six (the bottom left and bottom right stamps NH). |
| Cert Link | http://psestamp.com/Cert/1374649 |