ANTIQUE ART NOUVEAU FIGURAL LADY MATCH SAFE MARKED SILVER

A very ornate figural lady match safe, beautiful lines initials on back, see picture. Marked silver, with an o infront of the word silver, don't know what the o means. Front and back in nice condition, undecorated edges have some dings, top and bottom. Questions email me??? Ebay member wrote to tell me the O is probally a worn G, which is G silver, german silver, but does not contain any silver. Also not made in Germany