青白玉雕鄭成功玉牌 of rectangular form, carved to one side with the figure of Zheng Chenggong (also known as Koxinga) standing mightily on a boat with flag bearing his surname 'Zheng', inscriptions to the reverse, the stone of pale celadon colour with a subtle brownish inclusion on one side (6.2cm) Qty: (1) 6.2cm