The rear dropout photo is the non-drive side. Here are a few more photos, I will have to get more photos this afternoon showing the whole frame and seat stay top caps.

The "friend of a friend" is Ron Boii who built frames for Schwinn, he says " It could be an Olympic team track frame ,,,just 13 of them. The time between Chicago, and Waterford left them without a shop to build, and I was it for that little while." Ron has noted the rear dropout brazing is not Chicago style. I don't have any reason to doubt Ron's insight but if this is a team frame (while being very cool) will undermine my intentions for the frame---Put as little money as possible into it (Maaco color of the day or rattle can touch up) and have fun ridding.