Rare plating! [B.Tilz] McWilliam Model #2W (RUP)

※Limited-time offer (May 6th - May 13th)!
◆This is a Tilz horn mouthpiece, the McWilliam Model #2W, finished with ruthenium plating.
I purchased it here, but I am selling it as I don't have many opportunities to use it. This is a very rare plating finish. Please try it if you are interested.
About RUP (Ruthenium Plate) *Excerpt from a related website
Ruthenium is a rare precious metal from the platinum group. Compared to silver or platinum plating, it has a black, lustrous finish.
Ruthenium plating is characterized by a rich, full tone and resistance to corrosion and tarnishing.
*Ruthenium plating is currently a very expensive process. (For reference) Ruthenium plating cost: ¥66,000 (as of February 2026)

[Mouthpiece Specifications]
McWilliam Model Number: 2W / Rim Inner Diameter: 17.7mm / Throat Diameter: 4.2mm / Cup Depth: Medium Shallow / Rim Thickness: Medium Wide / Shank: American Shank / Ruthenium Plated Finish (RUP)

Please consider this item understanding that it is a used product.