Hello all, I was wondering if you could help me date this dress? It is a size 10 and is only slightly too big for me, like maybe a size too large. I normally wear a size 0-2. It has a dry clean only tag on the side. Zipper is very small and in the middle of the back. I am unsure what the material is. I am new to the vintage world, and appreciate any and all help! Can’t wait to wear this piece!