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| Cert Num | 1380536 |
| Cert Date | 2020-08-20 |
| Catalog Number | 310 |
| Country | USA |
| Year | 1903 |
| Denom | 50c |
| Color | Orange |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, horizontal guide line block of four. |
| Cert Link | http://psestamp.com/Cert/1380536 |