Michel # 756; Scott # 746; Stanley Gibbons # 858; Yvert # 698A;
	The Emperor's Slit Shell . Pleurotomaria (Mikadotrochus) hirasei.
	Color: dark brown & red
	Date of Issue: 10.02.1963
	Face Value: 4 Y
	Designer: no information
	Stamp Size: no information
	Stamp Quantity:no information
	Perforation: 13½

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