Vintage Pina de Roma coat

Vintage purple ladies Pina de Roma long coat. My mother bought this when she was in college, so probably between 1972-1974. She is quite petite, and I think the size is 0. I can take measurements if interested. There is a button missing, but it is in the pocket. You don’t want me to put it back on, trust me. The liner has a bit of spotting, but looks to be just from age. There’s a bit of dirt right at the very bottom. I will leave dry cleaning up to the buyer. It is a pretty heavy coat as well. Overall excellent condition for the age, it’s an amazing coat!