Andrea vintage NWT two tone formal A-line dress size 8

Andrea NWT formal vintage dress in a flattering A-line structure. Fabric is heavy (possible taffeta) with lining underneath. Zips up the back with three fabric covered buttons. Two gorgeous tones together. Lilac body with navy blue sheen fabric accent. Peekaboo on back. Straps are the two colors intertwined. Unique vintage dress never worn. Pit to pit: 17” Under bustline: 14.5” Total length from top of strap: 59.5” Homecoming Prom Vintage party 80s 90s Y2K Flaw: unfortunately there are what appears to be some water marks on the bottom of the dress. The last four photos tried to pick this up. They are difficult to see.