| Image Thumbs | |
| Cert Num | 1235697 |
| Cert Date | 2011-04-25 |
| Catalog Number | 515 |
| Country | USA |
| Year | 1917 |
| Denom | 20c |
| Color | Light ultramarine |
| Grade | Gem 100 |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged. |
| Cert Link | http://psestamp.com/Cert/1235697 |