Management Number: #5A203 This is a part removed from a Yamaha SF-3000 manufactured in the 1980s. Considering the business aspect, parts were likely standardized as much as possible. Therefore, it's believed to be a common part with other models. Based on my review of catalogs, it appears to be compatible with the following models manufactured around the same time (and may also have been used in other models manufactured around the same period): SC3000/SF3000 * It can also be installed on the following models if gold plating is not a requirement: SC5000/SC7000 The item has been cleaned and polished with polishing compounds before listing, but it may not be completely free of dirt. There are no screws that are stuck and cannot be turned, but as this is an old, used item, some screws may be difficult to turn. Please be careful when turning screws during adjustments.