Stamps, issuer=Colombia-20c on-desc-id
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Colombia
airmail1939 1939 air issue ovpted (no wmk info) (no perf info)
| - | 5c | on 20c (166) | ||||
| - | 5c | on 20c (166) | ||||
| - | 15c | on 20c (166) |
1953 1953 air issue ovpted
| - | 15c | on 20c (188) | — | — |
1961, Sep 1 1961 air provisional issue ovpted
| - | 10c | on 20c (237) |
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