| Image Thumbs | |
| Cert Num | 1406563 |
| Cert Date | 2022-02-16 |
| Catalog Number | 537 |
| Country | USA |
| Year | 1919 |
| Denom | 3c |
| Color | Red violet |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin block of four with Plate No. 9413. |
| Cert Link | http://psestamp.com/Cert/1406563 |