RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-01177
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Case 39 — Case finishing: distinguish a reflection from a surface mark · source wording exercise
A bright line appears in one polished-case image. What additional evidence would distinguish a mark from reflected light?
Review focus: source wording. Retain the source wording beside any paraphrase. Use the original answer fragment “A mark should be assessed across multiple views; aggressive polishing…” as the discussion anchor; no new event or result is supplied.
Exercise RWI-01177/39: address this question within its stated limits.