THREE VARIOS LARGE BLUE AND WHITE 'DRAGON' DISHES, each with shallow rounded sides and slightly flaring rim, the centre painted with a five-clawed dragon chasing a flaming pearl amidst flame-scrolls, the reverse with two striding dragons, including one with a Daoguang seal mark, one with a Tongzhi six-character mark and one with a Guangxu six-character mark and of the period