| Image Thumbs | |
| Cert Num | 1365617 |
| Cert Date | 2019-08-22 |
| Catalog Number | C5 |
| Country | USA |
| Year | 1923 |
| Denom | 16c |
| Color | Dark blue |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, block of four. |
| Cert Link | http://psestamp.com/Cert/1365617 |