| Image Thumbs | |
| Cert Num | 1221744 |
| Cert Date | 2010-05-25 |
| Catalog Number | 240 |
| Country | USA |
| Year | 1893 |
| Denom | 50c |
| Color | Slate blue |
| Grade | F 70 |
| Description | Mint RG |
| Opinion | it is a genuine unused, REGUMMED, bottom right corner margin block of four with letter S. |
| Cert Link | http://psestamp.com/Cert/1221744 |