Vintage backless halter asymmetric print dress

Vintage backless halter asymmetric print dress. Stunning dress features an asymmetrical hem, double layered chest, adjustable tie, cowl neck. No label or fabric content label, feels like polyester. Purchased at high-end store in the 90’s. Please note, there are a few minor stains (see photos) which I have not tried to get out. There is also a dime sized area on the back that is lightly discolored. Would fit a S/M. Measurements on request