| Image Thumbs | |
| Cert Num | 1322506 |
| Cert Date | 2016-10-12 |
| Catalog Number | 515b |
| Country | USA |
| Year | 1917 |
| Denom | 20c |
| Color | Light ultramarine |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is genuine unused, o.g., previously hinged, vertical pair imperf between (the bottom stamp never hinged). |
| Cert Link | http://psestamp.com/Cert/1322506 |