After restringing an upright about 6 years ago, I had subcontracted a tuner to chip up the piano and do a few rough tunings. This tuner (without my knowing it) brought in another tuner who was sight impaired and instructed him to tighten all of the plate screws and then pull up the pitch. On this particular upright the nose bolts were standard wood screws not unlike the rest of the plate screws... Anyway.. the plate broke that day in about four places.. They said it made quite a noise.
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