Create a 1950s black and white mug shot featuring a young girl in a black beret and a turtleneck sweater. Capture her image with a stark, no-nonsense style that conveys a sense of formality and seriousness. Ensure the background is minimalistic, with clean lines and sharp contrasts, emphasizing the subject's presence. The overall aesthetic should evoke the era's photography, with a focus on clarity and detail. The emotional atmosphere should be neutral, maintaining a detached and professional demeanor.