Sergei Isupov, “Marriage for the Ages”, 2022 Sergei Isupov, "Marriage for the Ages", 2022, porcelain, underglaze, glaze, 12 x 11.5 x 11". Sergei Isupov, “Marriage for the Ages”, 2022, porcelain, underglaze, glaze, 12 x 11.5 x 11″.