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| Cert Num | 1338483 |
| Cert Date | 2018-01-09 |
| Catalog Number | C90b |
| Country | USA |
| Year | 1976 |
| Denom | 31c |
| Color | red, blue & black |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of four, all colors omitted, the bottom right stamp with a faint purplish smear. |
| Cert Link | http://psestamp.com/Cert/1338483 |