Your Buffs badge is a genuine one and Smith and Wright are, of course, a well documented manufacturer. I suspect the capital 'R' to the reverse is a batch code purely for the manufacturer's reference and for quality control purposes. Some badges have numbers for the same purpose and the more proficient manufacturers tended to apply greater quality control than, say British Badge and Button Co., who were responsible for issuing a lot of mis-struck badges, reflecting a lower standard of quality control. Just mu opinion, of course. Regards. David