| Image Thumbs | |
| Cert Num | 1208937 |
| Cert Date | 2009-09-25 |
| Catalog Number | C90 |
| Country | USA |
| Year | 1976 |
| Denom | 31c |
| Color | Multicolored |
| Grade | XF-Sup 95 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, Mr. Zip and 'Use Zip Code' block of four. |
| Cert Link | http://psestamp.com/Cert/1208937 |