English wheel with rollers. A hand powered tool for creating curved shapes in sheetmetal. The image shows four interchangable lower rollers  (anvils), the larger fixed upper roller, the pressure adjustment screw and a quick release mechanism]].
<a href="//commons.wikimedia.org/wiki/User:Graibeard" title="User:Graibeard">Glenn McKechnie</a>
CC BY-SA 3.0
<span class="int-own-work">Self-photographed</span>