| Image Thumbs | |
| Cert Num | 1232251 |
| Cert Date | 2011-02-11 |
| Catalog Number | 511a |
| Country | USA |
| Year | 1917 |
| Denom | 11c |
| Color | Light green |
| Grade | XF-Sup 95 |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged, top margin block of four, the bottom right stamp only having transitional perf 10 at the bottom and the left stamps with a natural straight edge. |
| Cert Link | http://psestamp.com/Cert/1232251 |