Stamps of Austria, 11 Apr 1972
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postage
1972, Apr 11 European PTT Ministers Congress 1972 issue unwmk p. 14.5x13.75
| X | 4s | dkviobl | Vienna Hofburg |
1972, Apr 11 World Heart Month issue (no perf info)
| X | 4s | dkbrnvio | Patient with heart monitor |
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