| Image Thumbs | |
| Cert Num | 1222629 |
| Cert Date | 2010-06-16 |
| Catalog Number | 550 |
| Country | USA |
| Year | 1920 |
| Denom | 5c |
| Color | Deep blue |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. F12427 block of six. |
| Cert Link | http://psestamp.com/Cert/1222629 |