Based on the sticker on the chassis, it appears to be a SEYMOUR DUNCAN PA-TB1b Parallel Axis Original Bridge pickup. The wiring length is sufficient. I don't think it's particularly rare, but I believe it's a model from the early 90s. Personally, I think the sound is similar to an L-500, but with an output of 15.7k, it's not extremely high-powered, and I think it can be used in a way that's similar to a JB. As a bonus, I'll include a DiMarzio pickup mounting ring. Please refrain from contacting me if you are overly sensitive or if you are slow to respond or receive the item.