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| Cert Num | 1382594 |
| Cert Date | 2020-10-06 |
| Catalog Number | 555 |
| Country | USA |
| Year | 1923 |
| Denom | 3c |
| Color | Violet |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, top margin Plate No. 17924 block of six. |
| Cert Link | http://psestamp.com/Cert/1382594 |