Yup. There's no such thing as a Yani or Selmer "licensed copy," which is the phrase that they seem to be using these days.
Not to confuse you too much, but there is such a thing as a STENCIL, which is where company A makes a horn for company B and company B takes a stencil (or stamp) and engraves their own name on a horn. However, the only
current Yani stencil I've heard of is the
Vito VSP baritone, which is a stencil of the Yani B901. There are no Selmer stencils. Further, there are some good
copies of the Selmer designs, which you can argue successfully that the Yanagisawa and Yamaha horns are, but those folks don't claim to be selling copies, nor do they stamp "Selmer" on their bells.
If it sounds too good to be true, it probably is.
There's a scam website called
https://www.aliexpress.com that features a lot of these "licensed copies" and add to that that they duplicate some eBay ads. They don't even bother to hide it much.
Here's a QuinnTheEskimo horn that's obviously not for sale by Quinn, for instance. Remember to buy a
Mark VI alto for $312, while you're at it (I'm fairly sure the pics are from
GetASax.com).