Michel # 1934; Scott # 1924; Stanley Gibbons # 2293; Yvert # 1912;
	The Black-headed Gull . Chroicocephalus (Larus) ridibundus.
	Color: multicolored
	Date of Issue: 12.06.1992
	Face Value: 70 PTE
	Designer: José Projecto
	Stamp Size: no information
	Stamp Quantity: 600 000
	Perforation: 12:11¾

---