Stunning Vintage Vibrant Cotton Drill Mac.
In very good condition. 
One small area of wear, rear collar (see last photo).
Acid orange medium weight fabric.
Open neckline with large lapels.
All button present and matching. 
Princess cut shape, overstitching to front seams. 
No sizing or makers labels.
Measurements Laid Flat:
Pit to Pit: 19.5"
Bust: 18"
Waist: 17.5"
Hips: 19"
Length from rear collar: 35.5"