This is a paneled porcelain mug with a hand painted deep cobalt blue and white design. The mug is marked with a Japanese kiln mark and the Fitz and Floyd, Inc C. MCMLXXVII mark on the base. The Japanese kiln mark reads Kozan Gama or Kozan Ware. It is from the Maebata China Corporation in Tajimi City, Gofu, Japan. The mug is 4" tall and 3" wide. It is in excellent condition with no chips or cracks.