Stamps of Singapore, 22 Mar 2006
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postage
2006, Mar 22 Undersea World issue - marine mammals (2006) unwmk
| - | 1st Local | multi | Indo-Pacific bottlenose dolphin, p. 13.5 | — | — | |
| - | 2nd Local | multi | Indo-Pacific Humpbacked Dolphin, p. 13.5 | — | — | |
| - | $1 | multi | Finless Porpoise | |||
| - | $2 | multi | dugongs |
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