| Image Thumbs | |
| Cert Num | 1334347 |
| Cert Date | 2017-08-02 |
| Catalog Number | 636 |
| Country | USA |
| Year | 1927 |
| Denom | 4c |
| Color | Yellow brown |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is genuine unused, o.g., hinged, left margin block of four with Plate No. 18038 and small thins. |
| Cert Link | http://psestamp.com/Cert/1334347 |