This official Pink Floyd coffee mug features the original vinyl open gatefold of The Dark Side of the Moon -- one of the greatest albums of all time! The classic prism design is on one side of the coffee mug and the inverse prism is on the other. The Dark Side of the Moon was Pink Floyd's eighth studio album, released March 1, 1973. The Dark Side of the Moon Design is printed all the way around this premium 11 ounce Bluescentric Brand ceramic music coffee mug. It is dishwasher and microwave safe.