Here we have a 1985 GT Pro Performer F/F.  The frame is stamped GT 4130 and the forks are stamped 1985. At some point this frame was painted orange, I think it was originally white. My GT buddy told me these forks are rather desired.
The last photo shows the only ding I could find on the frame. Send this sucker to C4 labs and it would come back looking brand new, or just appreciate it as a rider. I only ship to the lower 48 states.