| Image Thumbs | |
| Cert Num | 1222250 |
| Cert Date | 2010-06-04 |
| Catalog Number | C9 |
| Country | USA |
| Year | 1927 |
| Denom | 20c |
| Color | Yellow green |
| Grade | F-VF 75 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin Plate No. 18892 block of six. |
| Cert Link | http://psestamp.com/Cert/1222250 |