If you're talking about the Blue Semi-hollow, it's a modulus. Check our dozin dot com and look under Bob's current gear and there's a little write up. I've also been seeing him use the old Ibanez Cowboy Fancy and a Tele.
There's a story outy on the 'net by Bob, or an interview or something, where he talks about the Tele he plays with Ratdog. I think it's on the Dozin' site. Anyway, Bob contacted his biological father, got to know him and his family, and the Tele belonged to his biological brother who is deceased. IIRC. A pretty touching story.