| Image Thumbs | |
| Cert Num | 1339058 |
| Cert Date | 2017-12-12 |
| Catalog Number | 515 |
| Country | USA |
| Year | 1917 |
| Denom | 20c |
| Color | Light ultramarine |
| Grade | XF 90 |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged. |
| Cert Link | http://psestamp.com/Cert/1339058 |