Very rare shipwrecked blue and white Ming export pottery.This piece is part of a collection that has been in my possession since 1994. The collection has been viewed by Christie’s and also a museum curator from main land China. Their authenticity is very apparent by just looking at them and in some cases barnacles and other sea life have left their undeniable marks after several centuries on the ocean floor. This piece measures 4.75 inches in diameter and is 2 inches high. Great collector’s piece