| Image Thumbs | |
| Cert Num | 1338923 |
| Cert Date | 2017-12-18 |
| Catalog Number | 1715a |
| Country | USA |
| Year | 1977 |
| Denom | 13c |
| Color | Tan & multicolored |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged block of 12, the bottom right stamp with light creases. |
| Cert Link | http://psestamp.com/Cert/1338923 |