| Image Thumbs | |
| Cert Num | 1366396 |
| Cert Date | 2019-10-28 |
| Catalog Number | 563b |
| Country | USA |
| Year | 1928 |
| Denom | 11c |
| Color | light bluish green |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, top margin Plate No. F17618 block of six on special booklet paper (the stamps NH). |
| Cert Link | http://psestamp.com/Cert/1366396 |