Good Afternoon to All! O.K., I have a new (to me) problem that I could use some help with. I have a grand action from a piano that was in storage for a while, and some of the ivories have little yellow blisters on them. I've tried rubbing a few out, and have smoothed off the top of the blister, but the yellow spotting remains. I've seen yellowed ivory before, but not these little yellow spots. It looks like some tiny droplets of some kind of liquid got on the keys, and somehow reacted with the ivory, raising the yellow blister. Anybody run into this before, and if so, did you find a way to remove the spots? Thanks, Patrick Poulson, RPT
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