Old Edwardian 10K F Locket and 12k gold filled chain antique retailer stamped

Product Name: Old Edwardian 10K F Locket and 12k gold filled chain antique retailer stamped
Very pretty old locket with Art nouveau style flowers butterfly etched on top. It is stamped 10k filled and hallmarked but it's hard to see so I'm not 100 % sure on the maker. I have an idea not positive so let you make out what brand you see. The chain is stamped 1/20 12 k gold on clasp loop The chain is a nice Rope chain perfect thickness not thin. The chain is 18-19 inches. The chain is in good-great vintage condition only slightest sign of age/ware. The locket is in good vintage condition but has some ware/age on it I showed it in the retailer pictures. The etching still looks great. The locket opens from the top not side. Please review all pictures for details condition and size. Any questions please ask. I ship fast and do bundle for a small discount and one shipping price on multiple items.