I just picked up a Hoover Concept 1 from the Goodwill. This will be my fourth Concept I've owned. Everything about it seems usual, so I was extremely surprised to see when I flipped it over that it has a metal chrome brushroll. I have never seen this before. Every Quadraflex I've ever seen in person or online has been black plastic. Is this something unusual to find or have I been living under a rock?



