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| Thumb | Certification Number | Certification Date | Catalog Number | Country | Year | Denomination | Color | Grade | Description | Opinion | PSE Link |
 | 1239435 | 8/2/2011 | K1 | USA | 1919 | 2c on 1c | Green | Superb 98 | Mint OGph | it is genuine unused, o.g., previously hinged. |
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 | 1293439 | 11/19/2014 | K1 | USA | 1919 | 2c on 1c | Green | XF-Sup 95 | Mint OGnh | it is genuine unused, o.g., never hinged. |
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 | 1321343 | 9/16/2016 | K1 | USA | 1919 | 2c on 1c | Green | Ungraded | Used | it is genuine, not used in China. |
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 | 1322668 | 10/12/2016 | K1 | USA | 1919 | 2c on 1c | Green | Ungraded | Mint OGnh | it is genuine unused, o.g., never hinged, REPERFORATED at the right. |
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 | 1349645 | 8/24/2018 | K1 | USA | 1919 | 2c on 1c | Green | Ungraded | Mint OGnh | it is genuine unused, o.g., never hinged. |
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 | 1375329 | 4/6/2020 | K1 | USA | 1919 | 2c on 1c | Green | VF 80 | Used | it is a genuine used, block of four. |
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