NWOT CLAUDIA CIUTI Italian Sling Black Copper Heel

I purchased these fantastic Claudia Ciuti Italian leather sling backs new for $350. I never wore them (see photo of bottom of shoes.) They are black linen with copper threads running through. The heels are black leather. The inner sole is gold leather and bottom soles are leather as well. The heel height is 3 3/4”. They are beautiful. Size 8 M.