Hi, I have one I want to sell.(pro-310 Hammarlund)
I have seen it on a neighbors table since I was 4 or 5. I'm 45 now. He passed away several years ago and all of his old ham stuff was given to me. I put it in my mothers shed as she still lived across the street from him about 2002 or 03. I just got it out to take home and see what I had.
I am not able to restore something like this, so I will sell it to someone who can and will enjoy it.
Dave, ke4gyx