Two other enamelled goblets of this form ascribed to the late 16th Century, but without the portrait medallions, are illustrated in the literature, see D. P. Lanmon & D. Whitehouse, Glass in the Robert Lehman Collection, New York, 1993, p. 74, fig. 23.2 for the example from the Jerome Strauss Collection now in the Corning Museum, New York, and B. Klesse & A. von Saldern, 500 Jahre Glaskunst, Sammlung Biemann, Zurich, 1978, p. 306, no. 258.