I have this one. I believe it is from 79, otherwise correct me. This is a low end model 40 as you can see on the neck stamp. The tuners only have 3 screws on the back vs 4 screws on higher models. The bridge has brass on higher models, mine do not. Apart from that I do not know what the difference is. Maybe the pickups ? Does any one knows? Anyway it is 100 % original, even the Tokai bag. Plays wonderfull and the sound is in my opinion amazing.