Vintage Liquid Satin Royal Purple Long Sleeve Button Down Front Blouse GUC Retro

This is a vintage purple long sleeve blouse Liquid satin fabric with pointy 70's style collar and two buttons on each sleeve Original find from my mom's vintage closet Great condition - needs ironing and has light discoloration under armpits as shown No size tag listed but estimated medium This top measures 19 1/2" across the bust lying flat and 25 1/2" long Only tag attached is for ILGWU (International Ladies Garment Worker's Union)