| Image Thumbs | |
| Cert Num | 1329822 |
| Cert Date | 2017-03-07 |
| Catalog Number | 830 |
| Country | USA |
| Year | 1938 |
| Denom | 30c |
| Color | Deep ultramarine |
| Grade | XF-Sup 95 |
| Description | Used |
| Opinion | it is a genuine used, block of four. |
| Cert Link | http://psestamp.com/Cert/1329822 |