A Japanese Koyo Yamazaki studio vase, Koyo Yamazaki (1890-1979), circa 1950s, the simple globular form vase covered in a deep copper reddish-purple glaze. Impressed two-character 'Koyo' mark to the base within the footrim, 22 cm high, 25 cm diameter, other notes: Yamazaki Koyo received many awards during his life for his pottery, and his work is in numerous collections including the Museum of modern Art Boston, Bern Museum of Art, and the Japanese Imperial collection, no visible faults or damage