Found!
In my quest for parts for one of my bikes, as well as some parts for my daughter's bike; I constantly look over thrift shops for odds and ends.
Then, I run across a pretty clean 1977 Schwinn LeTour 12.2. Complete with Ideale leather seat. The thing is HEAVY. But, pumped up the tires and rode it 3 miles home. Not a bad bike.
I have a large amount of guilt that I'm going to disect it for bit's an pieces. Crank and front brake will go to my second fix/single speed. Bars, neck, brake handles to my daughters mixtie project. The seat, I'm tossed: they sell well on ebay, but, I'd like to try out a leather seat for sometime to see if they are as comfortable as people say they are.