| Image Thumbs | |
| Cert Num | 1270222 |
| Cert Date | 2013-09-27 |
| Catalog Number | PR60P3 |
| Country | USA |
| Year | 1879 |
| Denom | 6c |
| Color | Deep black |
| Grade | Ungraded |
| Description | Mint RG |
| Opinion | it is a genuine plate proof, gummed and perforated. |
| Cert Link | http://psestamp.com/Cert/1270222 |