| Image Thumbs | |
| Cert Num | 1219917 |
| Cert Date | 2010-04-13 |
| Catalog Number | K6 |
| Country | USA |
| Year | 1919 |
| Denom | 12c on 6c |
| Color | Red orange |
| Grade | XF 90 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of four. |
| Cert Link | http://psestamp.com/Cert/1219917 |