If the first generation M39's were "black finish", why do I have memories of me wanting a M39 because it was bright Nickle finish (or were they stainless steel?)...I would have never lusted after a black M39 (I did have a Black M59 at one time...didn't like the double action first shot, change-over to single action).
A side note, back in about the Summer of 1987, I was in a parking lot across the street from Ferris State University, when a guy with long blond locks and a Nickle M39 in Mexican carry got out of a car which held three or so other males to make a phone call from a telephone booth. He did not appear to be a student. I have often wondered if those guys were cops of some kind, or perhaps drug dealers. I suspect cops...inasmuch as they were smartly dressed, but still casual clothing. I would have suspected that drug dealers would have dressed much more inconspicuously. It kills me that I never found out who they were.