| Image Thumbs | |
| Cert Num | 1275917 |
| Cert Date | 2013-12-28 |
| Catalog Number | C1 |
| Country | USA |
| Year | 1918 |
| Denom | 6c |
| Color | Orange |
| Grade | VG-F 60 |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, block of four, with a horizontal guide line (the bottom stamps never hinged), each stamp with a pencil notation on the gum and the top left stamp with a tiny gum crease. |
| Cert Link | http://psestamp.com/Cert/1275917 |