I've been able to find very little in searching the internet. I know they were a small (father and son) outfit in Cincinatti Ohio in the 50's and 60's and were regarded as innovators in several of their designs. Ann Clark was a friend of the younger Pierson, and she and her husband shot their bows some in the early days according to an interview I found. Tell me what you can. I bought a "Sultan" straight end bow off Ebay that appears to be in excellent shape. The profile looks really similar to some of the newer reflex/deflex designs and somewhat resembles Ron LaClair's Shrew. I understand this particular model set some flight records in it's day. Just looking to learn whatever you guys might know. Ron, Jack, Ken, anyone? Chime in here. Thanks, CK