1970s stoneware mug green Japan mid-century green

A really groovy mug from the 1970s is imperfect (somewhat rustic) in it's manufacturing, but in very good used condition, so please examine photos well prior to purchasing. I love the speckled inside--reminds me of coffee grounds! It is a gorgeous kelly green with stripes of blue and brown! Perfectly kitchy, well-loved. Buy with confidence I'm an experienced glass and ceramic shipper!