Vintage Tan Blazer

Austin Reed Tan Blazer size 12 I bought this from an online vintage store and they couldn't take this back. I paid $30. It is a size 12 (which I wear but back than a size 12 is like a size 10 and length feels like a crop, instead of covering my hips.) Feels like it's a petite size, but it doesn't say. No pockets (just has the pocket flaps.) There's a snag on the left arm elbow, please refer to picture that has blue arrow. Armpit to Armpit 22" Length 22" Sleeve 21.5"