Siri size 12 Dupioni silk gown

NWT Size 12, unaltered, Siri strapless a-line dress in Port. Dupioni silk with a large amount of slubbing. 54” in length (it’s strapless, so armpit to hem) Waist is 17” when laid flat. 24” “ribbons” (for lack of a better word) from top of back to bottom of material. Beautiful dark purpley burgundy color (port definitely describes the color!) I just could not get it to photograph properly. I purchased with the intention to size down and wear on a cruise and just never did.