| Image Thumbs | |
| Cert Num | 1340916 |
| Cert Date | 2018-02-01 |
| Catalog Number | 1393D |
| Country | USA |
| Year | 1972 |
| Denom | 7c |
| Color | bright blue |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged block of four, with vertical perforations shifted 5.4mm to the left. |
| Cert Link | http://psestamp.com/Cert/1340916 |