The Alessi-Vacchiano Mute is an iconic, acoustically precise straight mute for trumpets and cornets. Created by legendary New York Philharmonic principal trumpeter William Vacchiano and his former student, Joseph Alessi, Sr., the mute features a unique flat bottom created by an accidental drop, which ensures accurate intonation and responsiveness across all registers. The above has been pasted from a website. It described the quality of these mutes and the respect accorded to them. There is a small dent in the side, I don’t expect it would take much effort to remove, nor does it have ant noticeable affect on its performance. The appearance would be improved by cleaning. Offers considered but remember these are sought after mutes, don’t miss it by haggling.
