| Image Thumbs | |
| Cert Num | 1269742 |
| Cert Date | 2013-08-20 |
| Catalog Number | 2561a |
| Country | USA |
| Year | 1991 |
| Denom | 29c |
| Color | Multicolored |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, lower left margin zip block of four, black (engr.) omitted. |
| Cert Link | http://psestamp.com/Cert/1269742 |