4 Blocks China 2002 2006 Chinese Porcelain Song Dynasty Ruyao Ware Stamps

This is 4 mint center blocks of 4 stamps from China's 6th Series in 2002.

These stamps feature Ruyao Ware porcelain Pottery from the North Song Dynasty.

These blocks measure 2.5" long and 3.25" wide.

These stamps come in great condition.