Old Photo Restoration

I have an old photo that needs careful and precise restoration work. The main task revolves around restoring missing parts. Useful references for the missing parts will be provided to ensure the restoration matches the original image as closely as possible. Attention to detail is crucial as the acceptable level of changes to the original photo is minimal - I wish to maintain most features while ultimately enhancing the overall quality of the image. Ideal candidates would have proven skills in Photoshop and a portfolio demonstrating their proficiency in photo restoration.