Vintage Royal Vale England Ridgway Potteries Cornflower Teacup and Saucer. Pattern 7513. 

There is a tiny chip to the rim of the cup. See pictures up close for detail.

The saucer is 5 1/2 inches in diameter. The teacup is 2 3/4 inches tall, 3 3/8 inches in diameter, and 4 1/4 inches from rim to handle.