| Image Thumbs | |
| Cert Num | 1239661 |
| Cert Date | 2011-08-12 |
| Catalog Number | 578 |
| Country | USA |
| Year | 1923 |
| Denom | 1c |
| Color | Green |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, block of four (the left stamps never hinged). |
| Cert Link | http://psestamp.com/Cert/1239661 |