Y. Israeli, Made by Ennion: Ancient Glass Treasures from the Shlomo Moussaieff Collection, exhibition cat. (Israel Museum), Jerusalem, 2011, p. 74.
For a discussion of these leaf beakers and their dating, with particular reference to an example in the J. Paul Getty Museum (85.AF.91), see Wight, 2000, pp. 61-79. Comparing their type of decoration and size, and use of natural coloured glass rather than the bright blues and greens popular in the Augustan and Julio-Claudian period, Wight suggests a date in the late Neronian-Flavian period for these beakers - the third quarter of the 1st Century A.D.
As well as the Getty leaf beaker Wight lists another five beakers known to her including one in the Metropolitan Museum of Art (acc. no. 81.10.222) one formerly in the Antiken Abteilung, Berlin, one in the Miho Museum (Akiyo, 2001, no. 142), one formerly in the Kofler-Truniger collection, sold at Christie's, London, 5-6 March, 1985, lot 117 (see Clemenz & Steinemann, 1981, p. 80, no. 271), and one formerly in the Motamed collection, Frankfurt (once Christie's London, 11 July 1990, lot 20). She also mentions a sixth beaker that she saw in the mid-1990s, which might correspond to the above lot.