Trio of vintage brutalist coffee mugs handmade stoneware glazed

Trio of pretty vintage brutalist coffee cups, handcrafted glazed stoneware. Random round shapes, flared, with small stem handle. 2 glazed dark brown slightly burgundy, all glittery in bright light. Irregular glaze, one with rougher areas inside. The 3rd glazed more brown 2 spots of black enamel inside, a small manufacturing defect (grain). 8-9cm max diameter depending on the piece, approximately 11cm length with handles, approximately 4cm height. Very good condition apart from the manufacturing defect. Approximately 100gr each.