A 19th century Russian silver and niello work beaker

A 19th century Russian silver and niello work beaker,

maker's mark of A.J.S, assay master Nikolay Dubrovin, Moscow, probably 1839,

tapering circular form, decorated with a scene of a ship with a town in the background, and St. George and the dragon, within foliate scroll decoration, traces of gilding to bowl, height 8.2cm, approx. weight 4oz.