... Between swirls of vegetation richly covering the board, high-relief bust portraits of men, resembling ancient Roman cameos are placed. Another example is a vase-pickle with an emblem of the city of LÜneburg ...
... i sobranie reznykh kamnei Ermitazha. Sbornik. Gosudarstvennyi Ermitazh. Petrograd, Gosizdat, 1920, vyp. I, pp. 43‒62. (in Russian).
Neverov O. Antique Cameos in the Hermitage Collection. ...
... Portraiture of the 1750s — Early 19th Century
2.3.11. Valeriia I. Koroleva (Lomonosov Moscow State University, Russia) “Artists of Cameos” in Russia in the Second Half of the 18th —Early 19th Century ...