| Image Thumbs | |
| Cert Num | 1352038 |
| Cert Date | 2018-10-04 |
| Catalog Number | 1933 |
| Country | USA |
| Year | 1981 |
| Denom | 18c |
| Color | green |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin block of six (3x2) with dry inking across the upper portion of the top three stamps. |
| Cert Link | http://psestamp.com/Cert/1352038 |