| Image Thumbs | |
| Cert Num | 1318286 |
| Cert Date | 2016-06-27 |
| Catalog Number | O110 |
| Country | USA |
| Year | 1879 |
| Denom | 6c |
| Color | Brown |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four, (the top stamps never hinged) the bottom left stamp with a pulled corner perf and the bottom right stamp with a thin. |
| Cert Link | http://psestamp.com/Cert/1318286 |