Reformation vintage dress

Unique vintage dress altered/up-cycled by Reformation. Black slub fabric with organic cream polka dots. Unknown fabric content as interior tags have been removed during the alterations. My guess would be a cotton/poly blend. Long cuffed sleeves with covered buttons. Slightly empire waist and low-cut (cleavage-bearing) neckline. Metal back zip. Slim skirt. Unlined- alterations obvious from inside the dress but not outside. Hanging loops have been added. Nonsmoking household. No marked size but I would call this a true XS- see photos for measurements.