Vintage Style House 'Wardstone' (Montgomery Wards) stoneware mugs and saucers, mid-century vintage, made in Japan. I like the deep coffee brown solid color of this pottery, they'd make perfect coffee cups!
It's a set of six 6 ounce cups with matching saucers (cups are 3" tall). These are unmarked, a glossy warm chocolate color inside and out, showing no signs of wear. I don't believe these have ever been used.