| Image Thumbs | |
| Cert Num | 1375187 |
| Cert Date | 2020-04-07 |
| Catalog Number | C94a |
| Country | USA |
| Year | 1979 |
| Denom | 21c |
| Color | Blue & multicolored |
| Grade | XF 90 |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, setenent pair (the bottom stamp NH). |
| Cert Link | http://psestamp.com/Cert/1375187 |