These two mugs are circa 1970's. "HAVE A HAPPY DAY" is printed on two sides of the mug; once under the solid yellow face and once above the yellow outlined face.
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"A-63" is embossed on the bottom of one mug and "B-81" on the bottom of the other.
Height = 5 1/2 inches
Diameter = 4 1/2 inches (including handle)
Capacity = 12 ounces
Both cups are in "As New" condition. They show no wear.
handled retro beer stein