Ceremonial Blue Glaze (also known as Ji Lan, Ji Qing, or Imperial Blue glaze) was a renowned glaze used in official kilns during the Ming and Qing dynasties. The cup has a bell-like shape, with a unique blue-and-white glaze, enhanced by the exquisite color-ground and white-paste technique used in imperial court pottery. The vibrant blue and white colors complement each other beautifully, bringing the dynamic image of a kingfisher to life on the surface of the piece.