You know... so many of those sweepers look the same. I really really think most of them were made by a few companies and rebadged for electric vacuum manufacturers. And if you think about it for a second, it makes sense. A manufacturer set up for casting and polishing aluminum, and building electric motors wouldn't be equipped to build wooden boxes with leather bellows. Actually, now that I think about it, a music box or player piano company would be much more suited to that. The bellows setup looks identical to some old timey player pianos.