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| Cert Num | 1269458 |
| Cert Date | 2013-08-23 |
| Catalog Number | 666 |
| Country | USA |
| Year | 1929 |
| Denom | 8c |
| Color | Olive green |
| Grade | F 70 |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, lower right margin Plate No. 18191 block of four (the bottom stamps never hinged). |
| Cert Link | http://psestamp.com/Cert/1269458 |