Vintage Heart Sterling Pink Shell MOP inlaid Bangle Bracelet 925 signed delicate

Sterling Pink Shell MOP mother of pearl Bangle Bracelet Stamped with 925 and makers mark, but I couldn't find out who's mark it is. Measure almost 2.5 side to side by 2.25 from heart to back. Heart is half inch from too to bottom. Has it's natural patina, will polish upon request. Please check photos and feel free to ask questions.Thanks for looking :)