3 Chinese Qing Underglaze Red Porcelain Water Pots: the first with clear glaze inside and base with 4 character Xuande mark in underglaze blue; the second with a thick langyao crackle glaze with clear crackle glaze inside and unglazed base burned brown in the kiln firing; the third with light red crackle and an underglaze blue seal mark to clear glazed base. Height of largest in crackle glaze 2 3/4 inches (7 cm.).