Vintage Robbie Bee tea dress

Beautiful vintage dress with white collar and tie in back. Can be worn formal with a pair of heels or make it casual with flats and a jean jacket. Perfect to wear to a party or work, you will be the only one in a beautiful dress like this. No size tag measurements are as follows: pit to pit 17. waist approx 17 length from shoulder 48, I'd say it is a midi. I looked all over and could not find a fabric tag.