| Image Thumbs | |
| Cert Num | 1328953 |
| Cert Date | 2017-02-06 |
| Catalog Number | 1911 |
| Country | USA |
| Year | 1981 |
| Denom | 18c |
| Color | multicolored |
| Grade | Superb 98 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, bottom right margin Plate No. 111111 block of four. |
| Cert Link | http://psestamp.com/Cert/1328953 |