| Image Thumbs | |
| Cert Num | 1325866 |
| Cert Date | 2016-12-05 |
| Catalog Number | 1910 |
| Country | USA |
| Year | 1981 |
| Denom | 18c |
| Color | multicolored |
| Grade | XF 90 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, bottom left margin block of six (3X2) with Mr. zip. |
| Cert Link | http://psestamp.com/Cert/1325866 |