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postage
1966, Feb 25 soldiers (1966) unwmk p. 14.5
| X | 6e | multi | Cavalry Officer 1807 |
1970, Oct 31 fossils & minerals (1970) p. 13.5
| X | 6e | multi | Nostoceras |
1974, Oct 25 seashells 1974 issue - seashells (1974 Angola) p. 12x12.5
| - | 6e | multi | Lyropecten nodosus |
airmail
1965, Jun 12 1965 air issue (no perf info)
| X | 6e | multi | jetliner over Bridge over Rio Quanza |
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