Please understand that while we may temporarily lower prices, we generally do not negotiate discounts. Management Number: #5A320 This item was removed from a Yamaha SL-430 manufactured in the 1970s. From a management perspective, parts were likely standardized as much as possible, so they are likely common with other models. Based on my review of catalogs, I believe they are compatible with the following models manufactured around the same time. (In addition, they may have been included or used in other models manufactured around the same time.) SL380/SL400S/SL430/SL450S/SL500/SL500S/SL550/SL550S/SL600S/SL700S/SL800S We have cleaned and polished the item with polishing agents before listing, but it is not completely free of dirt. For free shipping, we may change the shipping method at our discretion.