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.
Edit - I'm wrong, it is All-Silver with Gold Trim, and not modified. I got mixed up with 2013/2012 Gold Trim coins