5th-6th century AD or earlier. A green double unguentarium comprising two flared tubes with globular bottoms, applied trail rims and zigzag detail, applied spiral trail to the sides. See Whitehouse, D., Roman Glass in the Corning Museum of Glass, Volume 2, New York, 2001, for comparable examples.59 grams, 11cm (4 1/4"). From an important central London collection formed since the mid 1960s; thence by descent.