Ok, I have # M9J17324, which should be 1979. Purchased it at a thrift store for $5.00, with a broken RD. New it was 400 or more. I have done a lot of work since I saved it. When I first looked at it the lady in the store said no one wanted it because it was broken. I'm going to try and get some pictures up latter, for now i'd like to thank everyone for the information. Mine is more of a total update then restoration.