| Image Thumbs | |
| Cert Num | 1228785 |
| Cert Date | 2010-10-29 |
| Catalog Number | 1820 |
| Country | USA |
| Year | 1981 |
| Denom | (18c) |
| Color | Violet |
| Grade | Gem 100 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, coil joint line pair. |
| Cert Link | http://psestamp.com/Cert/1228785 |