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postage
1933, Aug 3 typo print wmk. mult ovals (no perf info)
| X | 6c | yel | Columbus fleet |
1935, Jan 12 1935 issue unwmk
| X | 6c | blkbrn | Torres Estrada Palma |
1937, Jun 4
| X | 6c | scar & olgrn | Gen. Carfas Bridge |
airmail
1943, Sep 14 1943 air issue
| X | 6c | blgrn |
official
1935 1935 official issue
| - | 6c | redorg |
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