Antique Russian Sterling Silver Niello Chatelaine Perfume Scent Flask Bottle

Pre-owned.  Has the mark with 84 which indicates .875 silver, along with left facing woman's head wearing kokoshnik and also an assayer's mark I cannot make out.  In another area there is what I guess is the maker's mark but it is worn and I cannot make it out.  The cap screws on.  Bottle is attached to a belt hook by two chains.  One side has a shield shaped area that is blank.  above that is a name.  On the other side it is just a pattern.  The side where the shield is, is indented.  Not sure if that was intentional when it was made or someone pushed it slightly inward.  Some scratches. The bottle alone measures 2 3/8" x 1 1/4".  Including the chains and hook, the length is 4".  This item weighs 20.3 grams.