Silk one shoulder gown

This is a silk double sided dress - you can wear it front to back(to alternate the one shoulder) or inside out (one side is silkier than the side shown here). One “strap” is just for hanging and gets hidden when wearing. The one shoulder strap ties in a knot so you can raise or lower it depending on how you want to wear it. It’s a stunning dress, but does not have a tag anymore so I’m unsure of the brand. It was purchased at Nordstrom about 8 years ago. Worn twice.