Thank you very much, bijoux.expert, for your insightful explanation. While the oval hallmark remains a mystery, I truly appreciate the detailed information you provided.
I'm a newcomer here and would greatly appreciate your expertise. I believe I have an bracelet that features a french weevil mark, but I'm uncertain about its year of import / manufacture. Additionally, I've noticed a half-circle mark and am unsure whether it's a hallmark or ...