Ya, the cab is almost definitely a 67. It's the single baffle design. If it were a 64, it would be the double baffle with a Jensen P15N. Personally, I like the CTS better. And recently a guy posted a thread about B-15's and got to try all the cabs, and he went home with a 66 similar to yours. So it's all good! Except for the chicken head knobs. When I sent mine to Jess, he informed me that there were stove-top knobs on B-15's, not chicken heads, and he actually seemed to express disdain for the chicken heads. Probably because they were a Fender thing