Michel # 2252; Scott # 2102; Stanley Gibbons # 2247; Yvert # 2012;
	The European Bison . Bison bonasus.
	Color: multicolored
	Date of Issue: 29.06.1973
	Face Value: 18 st
	Designer: M. Peykova & G. Kovachev
	Stamp Size: no information
	Stamp Quantity: 200 000
	Perforation: 12¾ : 13¼

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