Vintage 70’s rare bracelet

This is a vintage 1970s designer bracelet These were only produced from 1971 to 1978 Please look at all pictures as they are part of my description and you will find measurements there as well. I will be adding more pictures soon. I just don’t have a good display yet. Please ask questions. I’m happy to help however, I can. Make me an offer And please, if you know the name of the designer, I would very much appreciate it. All I know is that my aunt said my grandmother bought it for her in Europe when she was on vacation and brought it back to her in the 70s. It cost a lot of money and she has kept it Very nice over the years. The only other one I can find is from a person in Europe, who does not know the designer, but also knew that they were only made from 1971 to 1978. If I find it, I will surely add it here.