Identifican request - 3 Valve mains superhet

[Sparks]

Thanks, I also found this info after a bit of "digging" on the internet. My set only has three valves, where all the ones covered have four with the rectifier mounted high up on the left hand side. I wondered if someone had changed this one to a metal rectifier, but it doesn't have the appearance of having been modified. I will know better when I look closer. There is an unreadable label on the top, but this is shown on the internet ones as the Wartime Civilian Receiver label.
I don't suppose it will take much effort to get it going if it doesn't work, and the cabinet is not in too bad condition either. Inside a bit grubby, as you can see.
Bob