| Image Thumbs | |
| Cert Num | 1303921 |
| Cert Date | 2015-08-04 |
| Catalog Number | 502c |
| Country | USA |
| Year | 1917 |
| Denom | 3c |
| Color | Dark violet |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is a genuine unused, o.g., previously hinged, block of four, imperf horizontally, the bottom stamps with a light crease. |
| Cert Link | http://psestamp.com/Cert/1303921 |