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| Cert Num | 1277193 |
| Cert Date | 2014-01-27 |
| Catalog Number | K13 |
| Country | USA |
| Year | 1919 |
| Denom | 40c on 20c |
| Color | Deep ultramarine |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, right margin block of four with Plate No. 12595, the left stamps with small natural gum skips. |
| Cert Link | http://psestamp.com/Cert/1277193 |