Stamps of Costa Rica, 13x12.5 perf
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airmail
1954, Sep 1 1954 air issue - national industries (no wmk info) p. 13x12.5
| X | 5col | blk | 1.00–10. | 1.00–10. | ||
| - | 10col | yel & blk | 1.00–10. | 1.00–10. |
1957, Jun 21 War of 1856-7 100th issue
| X | 1col | blk | Juan Rafael Mora | — | — |
postal tax
1961, Dec 1 unwmk
| - | 5c | grn & blk |
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