Admittedly, they are pretty obscure. Most folks won't have heard of Ralph Carnevale. There was one for sale here in Evanston IL off-and-on for several years. I believe they are essentially re-badged Medici Pro-Strada frames.

He's still around, retired somewhere in the Southeast (SC?), selling stuff occasionally on eBay (rjcarnevale?) and leather bar wrap and other bits at Home