Oscar de la Renta Vintage Black Two Button Blazer Suit Jacket

This Oscar del la Renta vintage blazer is a real beauty! There is no fabrication tag but it feels like wool and is fully lined. It is a soft black and has a soft texture to it. I don't think it's pilling, I think it's the texture of the fabric but please see pictures. There are some small picks in the fabric, I tried to show them in the pics as well. There are two buttons on the front. One of the sleeves is missing a button, I always wore this with the sleeves cuffed and hadn't even noticed one was gone. They aren't functional buttons and could be removed. All buttons are black. No size tag but measurements are in pics. I am usually an XS and it is just slightly large on me.