The Bell engraving looks OK to me.
Here is an example of a copy:
http://www.trumpetmaster.com/vb/f139...ads-74848.html (¿Chinese fake Strads?)
Maybe more detail, it is just the serial number at the moment, we do need to see more of the horn and case etc. I would try to contact Bach, they are pretty good with poor plating, and I am sure would honour any warranty etc.