Vintage fur collar coat

I have no idea the era of this jacket, but I do think it’s pretty old. Purchased over 15 years ago from a very trendy, high end thrift store by my house. The typically only accept genuine items. It is literally the most gorgeous coat on. The collar is real fur, I would guess mink. The sleeves are 3/4 length which add to the dressy feel. Very good condition on the exterior but a rip in the satin lining on the sleeve, and stain. Both pictures. button may need a stitch. No tag I would guess size 6