Stunning Vintage WERLE Beverly Hills!  Couture!
Open back with a cape like look and weighted coin at the bottom to make it hang nicely
Does fit model who is US Size 4, would be great for 2 too and looser and nice on a Sz 0.  imo.
Side zipper.  Lined
Slight discoloration or just lighter in front, not pitch black, still looks good!
underarm slight stains that are not really noticeable (see photo #12)

When are you going to ever see something like this!?!

26" long in front (Model is 5'9" so could be longer on you)
17" pit to pit (model is 34B and fits her)
14" waist flat (model is 27" in jeans)
18" flat across bottom/ hips 
32.5" long in back