Stamps of Tonga - Niuafo'ou, 3 base day
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postage
1993, May 3 1993 issue - Evolution of the Earth unwmk (no perf info) (5 stamps)
| - | 13s | multi | Gem Stones | — | — | |
| - | 45s | multi | Early life | — | — | |
| - | 60s | multi | dinosaurs | — | — | |
| - | 80s | multi | dinosaurs | — | — | |
| - | $10 | multi | Mammouth Sabre-tooth Tiger | — | — |
1993, May 3 10th Anniversary of Stamps in Niuafo'ou issue
| - | 60s | multi | — | — | ||
| - | 80s | multi | — | — |
1993, May 3 10th Anniversary of First Flight to Niuafo'ou issue
| - | t$1 | multi | — | — | ||
| - | t$2.50 | multi | — | — |
2015, Apr 3 Easter 2015 issue
| - | $2.25 | multi | — | — | ||
| - | $2.25 | multi | — | — | ||
| - | $2.25 | multi | — | — | ||
| - | $2.25 | multi | — | — |
2016, May 3 90th birthday of Queen Elizabeth II issue
| - | $2 | multi | Queen Elizabeth II | — | — | |
| - | $2 | multi | Queen Elizabeth II | — | — |
2018, May 3 BIRDPEX 8 issue
| - | $2.25 | multi | Charadrius obscurus | — | — | |
| - | $2.25 | multi | Charadrius ruficapillus | — | — | |
| - | $2.25 | multi | Cyanoramphus unicolor | — | — | |
| - | $2.25 | multi | Thinornis novaeseelandiae | — | — |
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