Claire McCardell for Townley Frocks circa 1934. Wool.
You have to just sit back and admire the brilliance of this designer. Just another reason why I love her work so much. These pieces and more can be viewed at the NY Met's Work of Art online Collection Database. These are all timeless classics, and they are all wool! A woman before her time in my mind. Which is your favorite? I'm partial to all, but the last set takes it for me.