This is a classic trumpet mouthpiece, the Bach 7C, GP (gold-plated). While there is some wear on the shank, the rim and cup are clean and there are no issues affecting playability. It feels good on the mouth and seems to produce a bright tone. With the rising price of gold, new ones cost over 30,000 yen even online. I've just lowered the price, so please refrain from negotiating a further discount.