You have a set of grips with someone,s personlized initials carved into them.
The initials SWL mean Safe Working Load
These are the designers initials.
Browning.com has serials numbers listed under customer service tab
Millimolar
You will have to call Browning to find out.
If you mean the international car registration then it is Switzerland
KC is the initials of his FaceBook account, apparently.
You will have to ask Browning.
Initials of the maker.
If you mean initials, then they are HI.
tgat
Makers initials