I've been emailing back and forth with the eBay seller of a BZH Hornless. I've provided him with all the information I can give him about these machines, which isn't much, and largely educated guesses. He is under the impression that BZH was the company that made them, while I'm certain they are a Columbia product. I don't believe they were in the regular catalog, so where they made for a re-seller? What year exactly? Thanks, John