Stamps of Tonga - Niuafo'ou, 22 base day
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postage
1985, May 22 mail ships (1985) unwmk (no perf info)
| - | 9s | multi | SV Ysabel | — | — | |
| - | 13s | multi | S.S. Tofua I | — | — | |
| - | 47s | multi | "Mariposa" | — | — | |
| - | t$1.50 | multi | "Matua" | — | — |
1986, May 22 AMERIPEX '86 issue
| - | 57s | multi | — | — | ||
| - | t$1.50 | multi | — | — |
2000, May 22 THE STAMP SHOW 2000 issue
| - | $1.50 | multi | — | — | ||
| - | $2.50 | multi | — | — |
2014, May 22 Butterflies 2014 issue
| - | $11.30 | multi | Small Greasy butterfly Acraea andromacha | — | — | |
| - | $16.90 | multi | Spotted Crow butterfly Hypolimnas antilope | — | — | |
| - | $28 | multi | monarch butterfly Danaus plexippus | — | — |
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