| Image Thumbs | |
| Cert Num | 1239005 |
| Cert Date | 2011-08-03 |
| Catalog Number | 545 |
| Country | USA |
| Year | 1921 |
| Denom | 1c |
| Color | Green |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, top margin L-shaped block of three, with Plate No. 10687/ S30 (the top right and bottom stamp never hinged). |
| Cert Link | http://psestamp.com/Cert/1239005 |