I just Surveyed a Collard & Collard, (Clementi), Square Piano, this week. It had a "sticker" on the bass end that explained the method of extracting the action. This explaination was due to the fact that it was probably one of the first to have a one-piece action. What they had done, was to drill a square bottom hole, (as in Forstner type) and inserted a screw, that could be grabbed with a pair of pliers. A bit crude, but functional. Perhaps someone could try to do a variation on that theme. Best Regards, Joe Garrett, RPT, (Oregon) Been There, Didn't Like It, So I'm Here To Stay! [G}
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