| Image Thumbs | |
| Cert Num | 1283852 |
| Cert Date | 2014-06-04 |
| Catalog Number | K13 |
| Country | USA |
| Year | 1919 |
| Denom | 40c on 20c |
| Color | Deep ultramarine |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four (the top right and bottom stamps never hinged), the bottom right stamp with a perf disc indent. |
| Cert Link | http://psestamp.com/Cert/1283852 |