| Image Thumbs | |
| Cert Num | 1370011 |
| Cert Date | 2019-12-10 |
| Catalog Number | 529 |
| Country | USA |
| Year | 1918 |
| Denom | 3c |
| Color | Violet |
| Grade | Superb 98 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 8608 block of six. |
| Cert Link | http://psestamp.com/Cert/1370011 |