![]() Your tuner friend that is away at the moment may be able to assist or know of someone who would. The first thing to do is find a local technician of your choice, preferably one that does restorative work. Thanks again for allowing others to gain from your experience, much appreciated. Hate trying to make silk purse out of sows ear though. Kind of like the idea of trying to rebuild a piano. I am a carpenter with 30yrs experience in renovating houses, boat rebuilding, and have rebuilt cars also so don't really see repair as a problem. Putting appearance aside though if the it doesn't Play well then its just nice looking furniture taking up valuable space for a good piano.ĭan would you recommend ditching it or look further and if not separating then bolt as you stated above. Not overly ornate but very tasteful appearance in my humble opinion. Looks like it fits the description you gave. Is this one of the serial numbers you were talking about to avoid. Some more information i was able to get from owner. Thanks so much for the reply Dan silverwood. Nice cabinetry on that one with the detailed front board and the double legs which are called Corinthian columns. If there is the remedy is to clamp the top end together, remove the six inch screws one by one and drill through to the back with a long bit or bit and brace, then install 5/8 lag bolts with a nut on the backside. If this instrument is one in that series then I would recommend removing the top bi-folding board to inspect for a separation there. ![]() There will also be the usual statement M&R had on their plates which was “Great is the Privilege of Achievement.” The third clue will be loose tuning pins in the upper part of the block. The second clue will be the decal work on the plate inside with will state “Patented Interlocking Pin Block Assembly” or something like that. One clue is the series is mostly in the five digit serial numbers beginning with number 1XXXX. I began to see pin block/ rear plank separations in the mid nineteen eighties and by this point in time very few of the pianos built with the interlocking pin block assembly will be stable. Unfortunately over time the tremendous weight of the instrument at concert pitch gradually began to pull the upper framework apart. ![]() This was the traditional build in the upper framework, but instead of the lag bolts that run through the pin block and out the back plank, they had a series of wedges interlocking the back plank and pin block together across the top of both planks. ![]() Mason & Risch had a series of instruments built with a design called the interlocking pin block. They did, however, like all other manufacturers experience weakness in some of their design features. Mason & Risch was one of the top five Canadian companies. ![]()
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