| Image Thumbs | |
| Cert Num | 1300439 |
| Cert Date | 2015-05-04 |
| Catalog Number | 1596d |
| Country | USA |
| Year | 1975 |
| Denom | 13c |
| Color | Multicolored |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, lower left margin Plate No. 37231-37236 block of twelve. |
| Cert Link | http://psestamp.com/Cert/1300439 |