| Image Thumbs | |
| Cert Num | 1386232 |
| Cert Date | 2020-12-14 |
| Catalog Number | F1 |
| Country | USA |
| Year | 1911 |
| Denom | 10c |
| Color | Ultramarine |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of eight (2x4), with natural straight edges at the left and bottom. |
| Cert Link | http://psestamp.com/Cert/1386232 |