| Image Thumbs | |
| Cert Num | 1377244 |
| Cert Date | 2020-05-28 |
| Catalog Number | 1709a |
| Country | USA |
| Year | 1977 |
| Denom | 13c |
| Color | multicolored |
| Grade | F-VF 75 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of four (1706 - 1709). |
| Cert Link | http://psestamp.com/Cert/1377244 |