| Image Thumbs | |
| Cert Num | 1397582 |
| Cert Date | 2021-08-05 |
| Catalog Number | 899 |
| Country | USA |
| Year | 1940 |
| Denom | 1c |
| Color | Bright blue green |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged, block of four with horizontal blind perforations at the center. |
| Cert Link | http://psestamp.com/Cert/1397582 |