A silver-gilt and niello box maker's mark NB,probably South West Russian,mid-19th century, the co

A silver-gilt and niello box maker's mark NB,probably South West Russian,mid-19th century, the cover and body decorated with a fortified port scene, including soldiers, the sides with peasants tilling harvesting, returning from a hunt and folk dancing, maker's mark and town mark an indistinct device struck twice, 8.2cm, 3 1/4in wide, 143gr, 4oz 6dwt.