| Image Thumbs | |
| Cert Num | 1288843 |
| Cert Date | 2014-09-11 |
| Catalog Number | 1193 |
| Country | USA |
| Year | 1962 |
| Denom | 4c |
| Color | Dark Blue & yellow |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, pane of 50, of which the Plate No. block is shown below and pos. 37 with a natural gum wrinkle. |
| Cert Link | http://psestamp.com/Cert/1288843 |