Andrew then looked at the one-eyed vendor. "Before the 11th century in H country, people didn't have high requirements for the completeness of the glaze of porcelain. It was only after the 11th century when the Emperor pursued perfection, the porcelain makers put in more effort on this. And the process of burning nails had only reached the size of rice grains because of continuous research. Are you saying this is a burial object dug out from the Imperial mausoleum before the 9th century? Who are you trying to fool?"