Looking at your photos I believe, perhaps and only perhaps: the head facing left could be the French Mercury Head for Limited Warranty 800 Minimum for Paris 1879-2000, or other French region if Mercury her shoulder carries a RAO (Regional Assay Office) number.
The other strange looking mark could be French hallmark for mixed gold and silver items introduced in 1905. If an item was constructed with more than 3 percent (30/1000) gold on silver or silver on gold, and each metal retained its original color, then the item was marked with the mixed gold and silver mark, using the opposed boar and eagle head.
Again I might be completely wrong. An estimated guess based upon a head facing left.