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postage
1949 scenic (1949) unwmk p. 13.5
| - | 50a | yelgrn | Waterfalls |
1951, Jan 23 birds 1951 issue - birds (1951 Angola) p. 11.75
| X | 50a | multi | Agapornis roseicollis |
airmail
1947, Aug 1947 air provisional issue (no perf info)
| - | 50a | blk | Angola arms 1947 |
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