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| Cert Num | 1367495 |
| Cert Date | 2019-09-30 |
| Catalog Number | K12 |
| Country | USA |
| Year | 1919 |
| Denom | 30c on 15c |
| Color | Gray |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin Plate No. 12590 block of six. |
| Cert Link | http://psestamp.com/Cert/1367495 |