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| Cert Num | 1234916 |
| Cert Date | 2011-04-11 |
| Catalog Number | K1 |
| Country | USA |
| Year | 1919 |
| Denom | 2c on 1c |
| Color | Green |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, botom margin block of six (3X2) with Plate No. 8431 below the lower left stamp. |
| Cert Link | http://psestamp.com/Cert/1234916 |