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postage
1976, Apr 1 1976 issue unwmk (no perf info)
| - | 70p | prusbl | Admiral Guillermo Brown |
1977, Mar 19 United Nations Water Conference 1977 issue
| - | 70p | multi |
1977, Mar 26 Plastic Arts issue
| - | 70p | multi | Consagracion - Miguel P. Caride |
1977, May 14 World Cup 1978 in 1977 issue
| - | 70p | multi |
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