| Image Thumbs | |
| Cert Num | 1297787 |
| Cert Date | 2015-02-20 |
| Catalog Number | C23c |
| Country | USA |
| Year | 1938 |
| Denom | 6c |
| Color | Ultramarine & carmine |
| Grade | VF 80 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 21911/F21951, arrow, two TOP, and two registration markers block of 10. |
| Cert Link | http://psestamp.com/Cert/1297787 |