I have a pearl necklace with a 14K gold clasp. I have not been able to find the makers mark anywhere. Any help would be appreciated. Want to sell it and the earrings (which are marked differently "FI 14K") but I would like to at least list it with the knowledge and information of who the maker is/was. Thank you for any time you might give to helping me. I have exhausted all of the resources I could find online. It looks like 3 "I"s or double connected H's or three connected columns ? Thanks for any help you can vie..thanks