Hello, A modern Chinese mug, probably brand new. The three characters near the handle seem to say "Xi You Ji", a fictious story from Chinese mythology/folklore that every Chinese knows. This is confirmed by the figure beside the writing, which seems to be that of Sun Wo Kong, a monkey with human character, the hero in the story.
Cannot read the bottom mark as it is too small. But first two characters seem to say Zhongguo or Zhonghua (=both meaning China), and the last is Hai (=sea). Hope this helps.
