Vintage Cups Mountain Wood Collection Stoneware

6 vintage cups from the 70's. They are speckled stone with a brown ring near the rim. Printed on the bottom is "Mountain Wood Collection Stoneware Japan". In good vintage condition. With the exception of one having a very small chip at the base (see picture) cups are in very good condition. Free of chips or cracks. Stands 3" tall the bowl is 3" wide and has a 1" handle.