| Image Thumbs | |
| Cert Num | 1403067 |
| Cert Date | 2021-12-09 |
| Catalog Number | 637 |
| Country | USA |
| Year | 1927 |
| Denom | 5c |
| Color | Dark blue |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is genuine unused, o.g., previously hinged, upper left margin Plate No. 18908 block of four, (the bottom stamps NH) with FAKE overprints. |
| Cert Link | http://psestamp.com/Cert/1403067 |