Marking:  crossed sceptre and two anchors, with date 1779 below, in shield (St. Petersburg town mark) (L. Bäcksbacka, St. Petersburgs Juvelerare, 1951, p. 16, no. 53);
 (In English alphabet reads E B), mark of Evgraf Borovshtikov, (both assayer and silversmith) w. 1772-1783 (Cf. A. Foelkersam, Alphabetical index of St. Petersburg silversmiths, 1714-1814, in Starye Gody, 1907 (Ja.), vol. I, p. 13). (Goldberg, p. 198, et. al.) (Bäcksbacka, pp. 20, 458)
Location of marks: both on base.