This is a genuine vintage photograph from the 40's with a great example of a curly shoulder length bob with a side part.
Her bangs are rolled up and back which was a popular look for this time period. They were often called victory rolls. The curls are big and soft and concentrated around the bottom of the hairstyle. Hot rollers help to achieve a look like this one. The curls go toward the face. Bright red lipstick was typical as well as suit dresses and shoulder pads.