Michel # 1382; Scott # 1266; Stanley Gibbons # 1378; Yvert # 1181;
	The Common (European River) Otter . Lutra lutra.
	Color: sepia, red and blue on blue
	Date of Issue: 30.04.1963
	Face Value: 20 st
	Designer: B.Angelushev, St.Kenchev, L.Zidarov.
	Stamp Size: no information
	Stamp Quantity: 300 000
	Perforation: 11 ½

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