| Image Thumbs | |
| Cert Num | 1335507 |
| Cert Date | 2017-09-20 |
| Catalog Number | 537 |
| Country | USA |
| Year | 1919 |
| Denom | 3c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, block of four. |
| Cert Link | http://psestamp.com/Cert/1335507 |