RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-19445
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Case 50 — Movement identification: the limits of a rotor photograph · source wording exercise
Only part of the movement is visible and the rotor hides several bridges. Which details can be described without claiming certainty?
Review focus: source wording. Retain the source wording beside any paraphrase. Use the original answer fragment “Ask a qualified watchmaker to inspect it if identification matters for…” as the discussion anchor; no new event or result is supplied.
Exercise RWI-19445/50: address this question within its stated limits.