My OLD 6P has the exact markings as the first photo, except says 6P, instead of 6Z. The knurled sections do not have channels next to them. The button is smooth. No LOTC.
I have the original box, with shipping receipt from Laser Products dated 11/21/94. The box is black, and of a (I think) later date than the RDwilson box. I ordered a spare P60 with the light. I still use the original lamp.
I am on my third set of batteries. Carried a lot, used a little.
Eat your heart out Al. Bet you don't have one this old.
I just checked, and I also have the original box, same configuration as the other light (and spare lamp) for my 9P purchased directly from Laser Products a few months after I acquired the 6P. I felt THE NEED FOR SPEED. No one had these lights back then. I had a ball showing a lot of people what after images looked like.