| Image Thumbs | |
| Cert Num | 1252079 |
| Cert Date | 2012-06-21 |
| Catalog Number | 515 |
| Country | USA |
| Year | 1917 |
| Denom | 20c |
| Color | Light ultramarine |
| Grade | VF-XF 85 |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, block of four, (the top left stamp previously hinged and the bottom stamp never hinged). |
| Cert Link | http://psestamp.com/Cert/1252079 |