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| Cert Num | 1308156 |
| Cert Date | 2015-10-12 |
| Catalog Number | 1405 |
| Country | USA |
| Year | 1970 |
| Denom | 6c |
| Color | Blk & olive bister |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, lower left margin Plate No. 31712 block of four with faint tagging. |
| Cert Link | http://psestamp.com/Cert/1308156 |