Ive been on the hunt for one of these for a while, had to be a 1976. Finally had one turn up in the country on Reverb, so I jumped on it. All original, other than replaced tuners and a re-fret at some point. Original, but beat up, case as well. Pots date to late Nov '75. Serial number is 76, so I would be guessing early 76 for the build. I'll probably try and track down original tuners at some point but its not really important. Plays and sounds insane, I think there is something in 70's gibsons that ticks a lot of boxes for me. The neck just feels like home.