Michel # 30; Scott # 30; Stanley Gibbons # 231; Yvert # 182;
	The Knob-billed Duck . Sarkidiornis melanotos.
	Color: multicolored
	Date of Issue: 03.01.1967
	Face Value: 50 c
	Designer: no information
	Stamp Size: no information
	Stamp Quantity:no information
	Perforation: 14¼:14¾

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