Not sure doesn't have the feel of Mr Fugger IMO
Here is a link to some of his work Fugger

Here is a link to Mr Kornbrath: Kornbrath

My personnel opinion is that the rifle is not G & H but rather done in Europe. The cheek piece is way wrong. As for the engraving not sure it wasn't also done in Europe and may not be G & H commissioned. I call it a put together rifle. But that's my opinion and not worth debating.