| Image Thumbs | |
| Cert Num | 1355907 |
| Cert Date | 2019-01-16 |
| Catalog Number | 20 |
| Country | USA |
| Year | 1857 |
| Denom | 1c |
| Color | Blue |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, plate 12, top right margin block of six. |
| Cert Link | http://psestamp.com/Cert/1355907 |