Rare Vintage YSL Wire Butterfly Belt

This is an extremely rare piece from Yves Saint Laurent. I’m guessing it dates back to the 70’s. The metal is in excellent condition with very little, to no tarnishing. However the leather belt is shedding. The butterfly can be removed and easily added to different straps. The has a clasp closer to the strap. Euro size 90, which is a medium large. No accessories included.