Michel # 3273; Scott # 2973; Stanley Gibbons # 3293;
	The Great Pond Snail . Lymnaea stagnalis.
	Color: lilac
	Date of Issue: 16.07.1990
	Face Value: B (500 Zl)
	Designer: J.Brodowski
	Stamp Size: no information
	Stamp Quantity: 188 372 000
	Perforation: 11½ : 11¾

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