| Image Thumbs | |
| Cert Num | 1223788 |
| Cert Date | 2010-06-03 |
| Catalog Number | QE3 |
| Country | USA |
| Year | 1928 |
| Denom | 20c |
| Color | Yellow green |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin block of four, with natural gum skips on the top stamps. |
| Cert Link | http://psestamp.com/Cert/1223788 |