| Image Thumbs | |
| Cert Num | 1287283 |
| Cert Date | 2014-07-29 |
| Catalog Number | 793 |
| Country | USA |
| Year | 1937 |
| Denom | 4c |
| Color | Gray |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, pane of 50, with the Plate Block area pictured below. |
| Cert Link | http://psestamp.com/Cert/1287283 |