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| Cert Num | 1399428 |
| Cert Date | 2021-09-08 |
| Catalog Number | 218 |
| Country | USA |
| Year | 1888 |
| Denom | 90c |
| Color | Purple |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is genuine unused, o.g., never hinged, block of four, the bottom right stamp with a corner crease that the bottom right. |
| Cert Link | http://psestamp.com/Cert/1399428 |