Roman Glass Double Balsamarium with Iridescence. 4th century A.D. Comprising two parallel tubes joined at the base and sides, each with flared rim and applied lateral loop; iridescent aqua glass. Cf. Whitehouse, D., Roman Glass in the Corning Museum of Glass, vol.2, New York, 2001, item 743, for type. 73 grams, 11.2 cm (4 3/8 in.). Ex North American collection, 1990s.