| Image Thumbs | |
| Cert Num | 1394415 |
| Cert Date | 2021-05-11 |
| Catalog Number | 639 |
| Country | USA |
| Year | 1927 |
| Denom | 7c |
| Color | Black |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, vertical pair with blind horizontal perfs between. |
| Cert Link | http://psestamp.com/Cert/1394415 |