| Image Thumbs | |
| Cert Num | 1312170 |
| Cert Date | 2016-02-29 |
| Catalog Number | 481 |
| Country | USA |
| Year | 1916 |
| Denom | 1c |
| Color | Green |
| Grade | XF 90 |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., hinged, block of four, with siderographer's initials in the lower left margin, the lower right stamp with a small gum crease. |
| Cert Link | http://psestamp.com/Cert/1312170 |