Most of us have seen the movie wardrobe test images of old movie stars standing with a little chalk board next to them naming the movie and such the costume is to appear in. I like those pictures, but I like even more…the test images of the back view of the hairstyles.
Images from the front can tell you a little bit, but seeing the back view tells you a lot more. From this image of Veronica Lake, you can tell that the hairstylist used a basic pin curl set that flowed from the part and down the back of the head. The curls were set low below the occipital bone in a very common set for the time period, which leaves the crown hair straight, so you can wear a hat without destroying your hair.