This is a single mug or cup in a Peter Rabbit themed pattern by Mount Clemens Pottery of Japan. The mug is 3 1/4" wide and 3" tall. It is in excellent condition with no chips or cracks. The rabbits on the mug are making music: one is playing an accordion, one a trumpet, and one a drum. The backstamp reads "Mount Clemens Pottery Yours... From The Good Earth Action Industries, Inc. Made in Japan."