Yukio Onaga Pottery Bowl. Item listed for sale is a rare and vintage Yukio Onaga glazed pottery bowl. It contains a nice reddish brown glaze throughout, with an’Onaga’ signature mark to base. There are no cracks, chips, or repairs of any sort. Please refer to the photod for full details. 4 1/8” Diameter, 2 3/8” Height approximately. Thank you for looking! If you have any questions, please ask.