Stamps of St. Thomas & Prince Islands, 15e denom
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postage
1977, Jun 28 400th Anniversary of the Birth of Peter Paul Rubens issue unwmk p. 13.5
| - | 15e | multi | Andromeda & Perseus |
1977, Oct 19 100th Anniversary of Universal Postal Union and the 100th Anniversary of Membership in the Universal issue (no perf info)
| - | 15e | multi | ++on=3.50e | |||
| - | 15e | multi | ++on=3.50e |
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