Vintage Purple and Black Floral Muumuu

Vintage Purple and Black Floral Muumuu with no size or brand tag, but it would best fit a size 3X, see below for exact measurements. For size reference, it is shown here on Alysse who typically wears a size 2/3X. The material is non-stretch and the dress is midi length with a cold shoulder. 

Measurements (taken flat in inches):
Chest and Waist 60"