Vintage Evening Dress by Lounge Craft XL

Vintage Evening Dress By Lounge Craft Metallic Thread Black And White Tag reads 18 please see sizes appears to be more more like a 14/16 Top is 100% Antron Nylon Skirt 82% Rayon 18% Metallic Lining is 100 % Acetate Dry clean only This has not been clean and may have a slight musty smell Does has a small amounts discoloration on the bottom of dress please see photos This dress has tons of give states a size 18 but appears to me to be more of 14/16?? Please see sizes for any reference