It's older for sure. Not sure what generation. I'm guessing it may have the older TIR with domed lens? or maybe the old NX05 optic? I'd say its worth that at least. Someone wouldn't mind having it for a collection. If not it would make for a good mod host and parts.
depending on the model of the head (KL1), it could be special...a certain model of the KL1 can run on one, two, or three cells, meaning it's also compatible for 1 or 2 by RCR123's.
So...is there an easy way to separate the sheep from the goats???
The modern style head housing with the Domed TIR lens (as opposed to the flat one) is the 9 volt model.