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| Thumb | Certification Number | Certification Date | Catalog Number | Country | Year | Denomination | Color | Grade | Description | Opinion | PSE Link |
 | 1134224 | 9/1/2015 | C1 | USA | 1918 | 6c | Orange | XF-Sup 95 | Mint OGnh | |
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 | 1187598 | 2/20/2015 | C1 | USA | 1918 | 6c | Orange | Superb 98 | Mint OGnh | it is genuine unused, o.g., never hinged. |
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 | 1193027 | 1/7/2009 | C1 | USA | 1918 | 6c | Orange | Superb 98 | Mint OGnh | it is genuine unused, o.g., never hinged. |
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 | 1193478 | 1/12/2009 | C1 | USA | 1918 | 6c | Orange | VF-XF 85 | Mint OGnh | it is genuine unused, o.g., never hinged. |
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 | 1217814 | 2/11/2010 | C1 | USA | 1918 | 6c | Orange | Superb 98 | Mint OGnh | |
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 | 1218028 | 3/1/2010 | C1 | USA | 1918 | 6c | Orange | VG-F 60 | Mint RG | it is genuine unused, REGUMMED over a thin at the center. |
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