Lot Essay
For similar cf. A. Furtwängler, Die Antiken Gemmen, Geschichte der Steinschneidekunst, Leipzig and Berlin, 1900, p. 297, pls XXV.48, XXXVII.13,14,1 and LXII.5, and M. Henig, Classical Gems, Ancient Gem and Modern Intaglios and Cameos in The Fitzwilliam Museum, Cambridge, 1994, p. 343, nos 721-722.