I had no idea:
"How long have you been playing Gibsons?
My first electric instrument was an EB-3 bass guitar, which is now called an SG bass. I’m a huge Cream fan, and Jack Bruce was a hero of mine, and he played a cherry ’60’s EB-3; one of the pickups is a humbucker, which provides a unique sound for a bassist. I started out on a used one in the late ’60s, eventually sold it, and years later found another.
I own a ’67 EB-3 that’s been on KISS records and other records. I love playing bass, and I played bass on quite a few KISS tracks besides playing on my own stuff."http://www.gibson.com/en-us/Lifestyle/Features/bruce-kulick-0303/