| Image Thumbs | |
| Cert Num | 1267198 |
| Cert Date | 2013-06-20 |
| Catalog Number | C1 |
| Country | USA |
| Year | 1918 |
| Denom | 6c |
| Color | Orange |
| Grade | XF-Sup 95 |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, center line block of four (the bottom stamps never hinged). |
| Cert Link | http://psestamp.com/Cert/1267198 |