Michel # 1831; Scott # 1698; Stanley Gibbons # 1826; Yvert # 1615;
	The Whooper Swan . Cygnus cygnus.
	Color: blue, grey & black
	Date of Issue: 12.09.1968
	Face Value: 5 st
	Designer: D. Rusinov
	Stamp Size: no information
	Stamp Quantity: 200 000
	Perforation: 10 ½

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