| Image Thumbs | |
| Cert Num | 1208350 |
| Cert Date | 2009-08-17 |
| Catalog Number | 826 |
| Country | USA |
| Year | 1938 |
| Denom | 21c |
| Color | Dull blue |
| Grade | XF-Sup 95 |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged. |
| Cert Link | http://psestamp.com/Cert/1208350 |