| Image Thumbs | |
| Cert Num | 1237472 |
| Cert Date | 2011-07-07 |
| Catalog Number | 506 |
| Country | USA |
| Year | 1917 |
| Denom | 6c |
| Color | Red orange |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 12558 block of six. |
| Cert Link | http://psestamp.com/Cert/1237472 |