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N. 19970010 Year of the ox. |
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N. 19970020 Year of the ox(logo of the Hong Kong exposition,1997). |
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N. 19970030 Sea Birds and Waders : Mergus serrator. |
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N. 19970040 Sea Birds and Waders : Sterna hirundo. |
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N. 19970050 Sea Birds and Waders : Larus ridibundus. |
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