Stamps of Sudan, 12 base day
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postage
1972, Mar 12 UN 25th issue wmk. mult SG p. 11x11.5
| - | 2p | multi | .20 | |||
| - | 4p | multi | — | — | ||
| - | 10 1/2p | multi | — | — |
2006, Oct 12 30th Anniversary of the formation of OPEC Fund issue (no wmk info) (no perf info)
| - | 200 | multi | — | — | ||
| - | 300 | multi | — | — | ||
| - | 400 | multi | — | — |
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