| Image Thumbs | |
| Cert Num | 1197665 |
| Cert Date | 2009-03-10 |
| Catalog Number | 664 |
| Country | USA |
| Year | 1929 |
| Denom | 6c |
| Color | Red orange |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, upper left corner margin Plate No. 18037 block of four (the bottom pair never hinged). |
| Cert Link | http://psestamp.com/Cert/1197665 |