Silk patterned dress with open back

Silk patterned dress with open back. Shell is 100% silk. Fully lined. Burgundy and navy with light pink details. Only worn once to a wedding. Some light signs of wear/faint deodorant marks under arms— it’s silk and care tag says to use mild detergent which did not take out the marks. I’m guessing dry cleaning would with no problem. Not noticeable when worn, just wanted to point that out (photos incl.) Otherwise in great condition. Very cute and the back is stunning. Falls mid-shin on me (I’m 5’7”)