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| Cert Num | 1290478 |
| Cert Date | 2014-10-29 |
| Catalog Number | C30 |
| Country | USA |
| Year | 1941 |
| Denom | 30c |
| Color | Blue |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, lower left margin Plate No. block of four. |
| Cert Link | http://psestamp.com/Cert/1290478 |