EditorialGlass revetment plaque fragment, Early Imperial, 1st century B.C.?1st century A.D., Roman, Glass; cast, 1 3/8 ? 2 1/16 ? 1/4 in. (3.4 ? 5.3 ? 0.7 cm), Glass, Translucent turquoise blue with opaque yellow, making glass look dark greenwith splashes of pa...