| Image Thumbs | |
| Cert Num | 1235047 |
| Cert Date | 2011-04-11 |
| Catalog Number | O40 |
| Country | USA |
| Year | 1873 |
| Denom | 10c |
| Color | Ultramarine |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four. |
| Cert Link | http://psestamp.com/Cert/1235047 |