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postage
1977, Nov 3 International Tin Symposium 1977 issue unwmk (no perf info)
| - | 6p | multi |
1979, Oct 22 9th Congress of Organization of American States issue
| - | 6p | multi |
1979, Dec 11 50th Anniversary of the National Radio issue
| - | 6p | multi |
1986, Sep 25 Construction of Railway between Uncia & Antofagasta - Tinfoil Stamp issue
| - | 6p | multi | — | — | ||
| - | 6p | multi | — | — |
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