| Image Thumbs | |
| Cert Num | 1217952 |
| Cert Date | 2010-02-26 |
| Catalog Number | C23a |
| Country | USA |
| Year | 1938 |
| Denom | 6c |
| Color | Dark blue & carmine |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, vertical pair, imperforate horizontally, with a black ink Sanabria, Inc. backstamp. |
| Cert Link | http://psestamp.com/Cert/1217952 |