| Image Thumbs | |
| Cert Num | 1396579 |
| Cert Date | 2021-07-19 |
| Catalog Number | O18 |
| Country | USA |
| Year | 1873 |
| Denom | 6c |
| Color | Vermilion |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged, top margin horizontal pair with Plate No. 56, the right stamp with a pulled perf at the bottom. |
| Cert Link | http://psestamp.com/Cert/1396579 |