This is a made in Japan Ceramic Hallmark Mug.
Depicts a very Happy Santa holding a candle on the right hand and a big bag of toys on the left
hand at the front, and the words
"Merry Christmas" on the back.
Measures 3 3/4" tall by 3 1/4" at the mouth
and 5" with the handle.
Hallmarked on the bottom.
Just click on the image to view.