Yukio Onaga Pottery Bowl. Item listed for sale is a rare and vintage Yukio Onaga glazed pottery bowl. The bowl contains a nice black glaze consistent throughout the bowl. Onaga’ signature mark to base. There are no cracks, chips, or repairs to this piece. It has been well-preserved with only very minor wear consistent with its age. 5” Diameter, 2 1/4” Height (approximates). Thank you for looking!