This is a mug or tankard made by Pfaltzgraff in the USA in the 1960-1970s in the Yorktowne Tulip pattern of a blue floral stencil on greyish white stoneware.
The pretty flat mug measures 4.5 inches high and is 3 inches in diameter.
The iconic mug is in very good used vintage condition with no chips, cracks or wear, and actually looks as if it has never been used!
manufacturer's number: 7-288