Vintage 60's ? Women's Floral Cutout White Pink Bow Front Dress Union Made Small

Vintage dress, looks like 60's era?, Jackie Kennedy look (?) Brand, material and size tag has been removed ILGWU Union label tag attached Vintage tulle petticoat attached Dainty cut out floral Satin material (polyester?) White and pink, white slightly discolored Back zipper closure Small stain noted on inside back of dress - see last photo Approximate measurements Underarm to underarm 16" Waist 11" Length 34 1/2" Good vintage condition