It's a silver coin with a gold gilded B. The title is spot on.
Fair question, fair answer 
I didn't realise people modified their coins.For clarification, this is an All-Silver round, not an All-Silver with Gold Trim round.
Some people might be mislead by this.
Nobody modified this coin.
You are the only person stating that it has "Gold Trim"
The title clearly states "Silver Round /w Gold B".