| Image Thumbs | |
| Cert Num | 1208833 |
| Cert Date | 2009-09-17 |
| Catalog Number | C9 |
| Country | USA |
| Year | 1927 |
| Denom | 20c |
| Color | Yellow green |
| Grade | F 70 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin Plate No. 18891 block of six, with several natural gum skips in the three right stamps and a natural gum crease in the top right stamp extending into the middle right stamp. |
| Cert Link | http://psestamp.com/Cert/1208833 |