The mazarine blue ground and rich gilding of this cup and saucer were the Chelsea manufactory’s response to the blue lapis ground and sumptuous gilding of Vincennes porcelain of the early 1750s. The factory’s sale catalogue of 1761 states, ‘A Catalogue of the LAST YEAR’S PRODUCE Of Valuable CHELSEA PORCEALAINE MANUFACTORY / Consisting of … the rare and inimitable Mazarine Blue and Gold, and other very rich Colours of exquisite Beauty and Magnificence’.