There are three marks on the cap:
1. 84 - STERLING SILVER 84 - Russian Standard for 19th Century
2.МГ (Russian letters) -Unknown SILVER MASTER - the mark is registered in Russian information book
3. Woman's head turn to the left with two letters in Russian AC - SILVER INSPECTOR from KOSTROMA region of Russia - A.Solodilov
Russin mark 84 means 84 parts of silver and 12 parts of other metals.
Very fine details
Size: height: 2 1/2" (6 cm)
Shipping in the USA: $10.00 insurance required depending of the price
