That was my next question. LOL.
I have two or three roundbacks but nothing that early.
Most rebuilders, even local ones :rolleyes:, often sandblast the castings resulting in a rough surface and damaging the dates. :(
I can get remanufactured round backs everywhere. But, to be totally honest, and honesty last the longest I learned as a kid, I think I would rather have an old and even dirty one that I can take apart myself and overhaul and put in my car. That would really please me.