| Image Thumbs | |
| Cert Num | 1219405 |
| Cert Date | 2010-04-06 |
| Catalog Number | 525 |
| Country | USA |
| Year | 1918 |
| Denom | 1c |
| Color | Gray green |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four, with every other perf cut away. |
| Cert Link | http://psestamp.com/Cert/1219405 |