| Image Thumbs | |
| Cert Num | 1233531 |
| Cert Date | 2011-02-25 |
| Catalog Number | 537 |
| Country | USA |
| Year | 1919 |
| Denom | 3c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, left margin Plate No. 9412 block of six. |
| Cert Link | http://psestamp.com/Cert/1233531 |