COLCLOUGH teacup with soft pastel blue background wash accented with small pansi

COLCLOUGH teacup with soft pastel blue background wash accented with small pansies.  Tea cup measures 2 3/4 inches tall and 3 1/4 inches across, saucer measues 5 1/2 inches across.  Back reads "Bone China D 66 4(cup), Colclough Made in England.  A Product of Ridgway Potteries Ltd Patt. No. 8243". Probably circa 1970, when Ridgway Potteries became a division of Royal Doulton.  It is a very delicate lovely set. very rare to find.