| Image Thumbs | |
| Cert Num | 1281251 |
| Cert Date | 2014-03-24 |
| Catalog Number | 530a |
| Country | USA |
| Year | 1918 |
| Denom | 3c |
| Color | Purple |
| Grade | Ungraded |
| Description | Mint OGh |
| Opinion | it is a genuine unused, o.g., hinged, left margin block of six (3x2), with Plate No. 9289 (the bottom stamps never hinged), the right two stamps #530a, double impression, the rest Scott No. 530. |
| Cert Link | http://psestamp.com/Cert/1281251 |