1970s Vintage Maxi Dress with lace rainbow floral details

1970s Vintage Maxi Dress with lace rainbow floral details - my Nu-Mode Toronto, paper tag Size '9', in my opinion, size XS - In Excellent Condition! Please see measurements: Pit to pit = 15" Length from shoulder = 53.25" Waist = 13" Sleeve length = 25" Not much stretch, 50% polyester and 50% cotton blend. Balloon sihouettle sleeves are sheer with elastic wrists. V neckline. Inner skirt for lining (sorry, very wrinkly in photos) Lace up tie tassels for the bust. Zipper back and attached waist tie. Rainbow colored florals with lay overlay. There's a Gunne Sax version of this dress! Ivory white, string is more stark white.