Thank you, Wolf Prarie Arts, it does look exactly like a 140, just without the markings, but the handle and the gearing are all the same, and the rest appears accurate as well. Is it possible the gear box was replaced at some point? Or did not have lettering in earlier models? I'm well versed in quite a lot of things, but blowers was one I skimmed a little bit in my research, so I know what to look for in a good blower, as well as the best makers, but little else. I apologize for my ignorance, but it has led me to quite an educational experience here.