| Image Thumbs | |
| Cert Num | 1374456 |
| Cert Date | 2020-04-03 |
| Catalog Number | 525d |
| Country | USA |
| Year | 1918 |
| Denom | 1c |
| Color | Gray green |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, upper left pane of 100 double impression variety, the pane with light gum bends. |
| Cert Link | http://psestamp.com/Cert/1374456 |