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| Cert Num | 1197641 |
| Cert Date | 2009-03-10 |
| Catalog Number | 622 |
| Country | USA |
| Year | 1926 |
| Denom | 13c |
| Color | Green |
| Grade | Ungraded |
| Description | Mint OGph |
| Opinion | it is genuine unused, o.g., previously hinged, right margin Plate No. 18107 block of six (the middle pair never hinged). |
| Cert Link | http://psestamp.com/Cert/1197641 |