Michel # 153; Scott # 1062; Stanley Gibbons # 149;
	The Whooper Swan . Cygnus cygnus.
	Color: green
	Date of Issue: 08.12.1952
	Face Value: $ 20
	Designer: no information
	Stamp Size: 18.5 × 21 mm.
	Stamp Quantity: 105 300
	Perforation: 12½

---