Actually, I think the J4 cane code is Touchdown. He was Edon in France, but there was no Edon in North America...a database search will verify that. You should look on the amps to see what they say. If they have a 10 digit registration number, I, or anyone quick on the draw with a 1977 CMAA directory should be able to identify the bull for you.
If it is Eden, I am interested in the semen...If it is Touchdown, which I'm betting it is...put if in your Angus cows.