I could not resist posting this. As you are aware, the paint is not original but the owner is. Also, it is a genuine Bob Jackson, I just never got the 531 decal after the repaint (~1980).
This set of decals were handed to me by Bob Jackson's son (?) during a visit to his visit to a Santa Monica, California bicycle shop. He wanted to see the frame before he handed them over, so I made the drive and showed him the proof.
It's a great bike. I've had several bikes during my lifetime but this Bob Jackson is the best.
Thank you!