60s 70s vintage dress blue ruffle S - M 1970s party sleeveless

Gorgeous robins egg blue 60s-70s dress. Sleeveless, back zip closure, ribbed skirt with a cute ruffle detail, unlined, and mock neckline. Would best fit a S-M, but please see the measurements to ensure a perfect fit. Brand, material, and original size aren't known. ILGWU Union made in the USA. Material is estimated to be polyester. Small pull, please see the photos. Freshly laundered. Here to help if you have any questions. 16.5” chest 34” length 12.75" waist laid flat / pulled taut 17.5" sleeve 20.5” hips laid flat, double where needed #ruffle #70smaxidress #pastelblue #bluedress #70sDress