Here is 4 full mint, never hinged, overprinted sheets from China in 1993-13.
These stamps feature the longmen grottoes with a silver overlay along the bottom of the sheet there is a silver dragon.
These sheets measure 6" long and 3" wide.
They have full undisturbed original gum with no perforation separations nor missing selvage.
These mint never hinged sheets are in excellent condition.