Vintage 40s 50s Handmade Party Dress

vintage handmade party dress circa 1940-1950 shiny blue material (unsure of type) hand beaded at the neckline midi length metal zipper side zip closure short sleeve bow detail at each sleeve scoop neckline belt loops but no belt fit and flare lined special occasion bridesmaid wedding guest petticoat there are some faint stains throughout...will need a trip to the dry cleaner. without me being sure of the material type, I'm hesitant to attempt any cleaning. price reflects! ***may be Shantung silk*** Measures: pit to pit - 16" waist - 12.5" NO stretch to the fabric about a modern size XS but please verify fit before purchasing