Stamps of Tonga - Niuafo'ou, 20 base day
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postage
1984, Aug 20 100th Anniversary of establishment of the Prime Meridian and Dateline issue unwmk (no perf info)
| - | 47s | multi | — | — | ||
| - | t$2 | multi | — | — |
1985, Feb 20 400th Anniversary of the Birth of Jacob Le Maire issue (5 stamps)
| - | 13s | multi | — | — | ||
| - | 32s | multi | — | — | ||
| - | 47s | multi | — | — | ||
| - | t$1.50 | multi | — | — | ||
| - | t$1.50 | — | — |
1995, Oct 20 50th Anniversary of United Nations issue (6 stamps)
| - | 60s | multi | — | — | ||
| - | 60s | multi | — | — | ||
| - | 60s | multi | Concorde | — | — | |
| - | 80s | multi | — | — | ||
| - | 80s | multi | — | — | ||
| - | 80s | multi | — | — |
2012, Apr 20 butterflies (2012 Niuafo'ou) (12 stamps)
| - | 45c | multi | Junonia villida | — | — | |
| - | $1.95 | multi | Euploea core | — | — | |
| - | $2.00 | multi | Danaus plexippus | — | — | |
| - | $2.40 | multi | Danaus plexippus | — | — | |
| - | $2.50 | multi | Hypolimnas bolina | — | — | |
| - | $3.00 | multi | Junonia villida | — | — | |
| - | $3.40 | multi | Euploea core | — | — | |
| - | $4.00 | multi | — | — | ||
| - | $5.00 | multi | Danaus plexippus | — | — | |
| - | $6.00 | multi | Hypolimnas bolina | — | — | |
| - | $7.30 | multi | Euploea core | — | — | |
| - | $8.00 | multi | Junonia villida | — | — |
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