Vintage feathered chiffon black dress

Amazing black vintage dress. Chiffon, long sleeves. Knee length. The buttons on the back are really delicate, so I chose not to close them for the photos. They DO close though. The underlay is a zipper back. The feather detailing is amazing and has great movement. The only small condition issues I can see are the under spaghetti strap is detaching (but it’s an easy fix). Also, there seems to be a few marks in the bum, so a dry-cleaning would be appropriate. Measurements in photos.