Sergei Isupov, “School Boy” detail, 2008 Sergei Isupov, "School Boy" detail, 2008, stoneware, stain, glaze, 29.5 x 16 x 9". Sergei Isupov, “School Boy” detail, 2008, stoneware, stain, glaze, 29.5 x 16 x 9″.