1970s Trivia by Charm of Hollywood hotsell white maxi dress

Measurements:
Chest: 34”
Waist: 20” (is stretchy, has give)
Hip: 34”
Waist to hem: 39”
Strap to hem: 54”

This is a gorgeous lined dress in excellent vintage condition. It is not marked with a size. The fabric is soft and not discolored or damaged. Accented by hotsell small mother of pearl buttons and lace. Ruffle bottom.

Unsure of fabric content