Upscale and restore an old photo honestly

Restore and upscale the attached photograph {{target scale}}.

Do: remove scan dust, scratches, and mould speckle; repair the torn corner by continuing the existing pattern only; reduce colour fading and correct the overall cast toward neutral; recover shadow detail without flattening contrast; keep natural film grain, scaled proportionally.

Do not: reconstruct faces from imagination, add detail to features that are genuinely lost, smooth skin, change facial structure, alter the era of clothing or objects, sharpen to a digital edge, or colourise unless I ask.

Where information is truly missing, leave it soft rather than inventing it. Afterwards, tell me which areas you reconstructed rather than recovered.