Vintage Clichy Sequin Jacket Size L

Vintage, one owner! Bought by my mother in law in the 80's. Mint condition. No size tag but I think it is a 12-14. Slouchy, dolman sleeves, cropped length. Amazing vintage styling. No missing sequins. Open front. Can't get an accurate P2P because of the sleeve shape. Measurement from back of neck to hem is 18" Front top of opening to hem is 15".