Marking:  Monogram IHB, in rectangle (maker's mark)
 a kedge and anchor in saltire, with date 1773, in shield (St. Petersburg mark and date)
 E B (in English alphabet reads E B) in rectangle (mark of assayer, Ergraf Borovshtikov, w. 1772-1783)
 76, in rectangles (quality mark; see Note)
Outside on bottom.