No, they look like they have been put together with proper tools. My ex Father in Law is a Brummie and I once watched him use a hammer to put a screw into a piece of wood. "Aha", says I, "The famous Birmingham Screwdriver I have heard about. What do you use screwdrivers for then?"
His answer was, "Them's fer opening tins of paint obviously, is yow stupid??.."