| Image Thumbs | |
| Cert Num | 1387315 |
| Cert Date | 2021-01-04 |
| Catalog Number | 515 |
| Country | USA |
| Year | 1917 |
| Denom | 20c |
| Color | Light ultramarine |
| Grade | Superb 98 |
| Description | Mint OGph |
| Opinion | it is genuine unused, o.g., previously hinged. |
| Cert Link | http://psestamp.com/Cert/1387315 |