| Image Thumbs | |
| Cert Num | 1312175 |
| Cert Date | 2016-02-29 |
| Catalog Number | 483 |
| Country | USA |
| Year | 1917 |
| Denom | 3c |
| Color | Violet |
| Grade | XF 90 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of four, with siderographer's initials in the lower left margin and light wrinkles in the selvage. |
| Cert Link | http://psestamp.com/Cert/1312175 |