I am having trouble identifying the marks on this ring. Some of the marks have been covered by the round balls of silver which have been added to the top of the ring. I think the letters on the left are AG but am not sure the last one.The second stamp I think is an anchor, but am having trouble finding a mark in the same style. Many thanks for any enlightenment!

http://s30.postimg.org/w7q5qwtn5/20140317_161327.jpg

http://s30.postimg.org/szlodv7dd/20140317_161344.jpg