"The kind of mouthpiece you could lose at the [farthest-away] football game and just replace" - I had to paraphrase that, but the Internet commentator who said this about a different mouthpiece also described these gold-plated "17C" pieces quite well!   

We still have more examples for sale; this particular one has a pretty smooth rim, though the exterior has various nicks, dings, and some light scratches on the body.  While probably a bit exaggerated in the photo, there are plating blemishes in the cup/throat as well.  The tool marks vary as well - they weren't made with Yamaha-levels of precision.  

The shank is in good shape, and the opening was re-rounded.  The gold plating isn't particularly thick, but it's still there.  It's ready to play and/or modify - see images for the example being sold.  

These trumpet mouthpieces first appeared around 2020, and they have since proven to be cheap and cheerful, somewhat expendable items.  They're definitely best for marching band, pep band, experimentation, and other high-risk environments.

The nomenclature, shallow cup, and exterior are definitely modeled on Rudy Muck, but without the cushion rim.  The high register is easier and brighter than most C-cup designs, but the throat/backbore transition needs to be a bit smoother [and the low register can sometimes be fuzzy, though it could be me].  It has been described as "nice sizzling focused sound with decent body if that's what you are looking for...very open backbore".

The rim is somewhat like the Schilke 2 [specifically the 8E2], the cup is a shallow A type [somewhere between the 6A4 and 13A4A diameters], and the backbore is rather large, even though some examples are larger than others.

As these come from several Chinese manufacturers, the consistency is not nearly the same as Yamaha, Lausmann, Vincent Bach, Bruno Tilz, or most any large-scale supplier.  The plating on some examples has been rougher, there are nicks and dings from the factory, the tool marks are often visible, etc.  Your mileage will definitely vary...!

Sold as-is, no returns, pay within 3 days.  US shipping free - caveat emptor as we cannot take responsibility for any mishandling/loss on the part of the courier at any point - this is FOB shipping point.  By buying, you [the buyer] agree to the potential risk of the package not arriving due to courier mishap - be aware of these conditions.

Usually we get the item in the mail within 1-2 days. 

Please note shipping delays may still occur.  It could take ~an extra week in some cases.