This is a very classic maroon one piece suit dress, and is made for a gal with curves! It’s fully lined and has satin covered button accents up the front and on the long sleeves.
I believe it to be from the late 70s or early 80s because I bought it with a bunch of other clothes from that era.
The only flaw I found was that the 8th button down appears a little squashed, but it’s barely noticable.
36 inches total length as measured from the back of the neck
32 inch waist
38 inch hips
21 inch long arms (from the seam at the top of the shoulder)
15 inch across at the shoulders.