I have a new rebuilt round back alternator. It is for external regulator. I think it would be pre 1969 ( isn't that when they started the internal regulator?) I bought it from one of the local parts stores 2-3 years ago , never used it , and decided to go with an internal regulated. Now I can't find the receipt. Recently I had it tested , and was told it is OK.
If anyone can use it, I would sell for $20 plus shipping from 50833. I will guarantee it - buyer pays for return shipping. PM me if you want to buy........................MO