Probably 60/70's. 2 3/4" high with 3 1/2" diameter opening heavy White ceramic mug with expertly done wrap around graphic. Shows Pluto romping in flowered field with pastel colored trees. He is holding a flower in his mouth while a Blue bird is pulling on his tail. Another Blue bird is coming to his aid and we guess they think it's a branch for the nest! Signed "Walt Disney Productions" in script at the bottom of the image. Bottom of mug has a Black triangle with a cursive like "D" connected with a block letter "D" and "Japan" below it. First we've seen. NM++.