So are there and figures in the Pendraken line with caps close to a 1920s working man's cap, like these fellows here:
https://activehistory.ca/blog/2019/06/18/the-workers-revolt-in-amherst/
Britain loses war, revolution starts. The POW camp in Amherst had Leon Trotsky and a contingent of German sailors for extra spice.
Britain doesn't even have to lose, just the proletariat follow the attempt in Russia.
Oh, interesting
Very interesting
Figure wise. - looks to be the odd one in the Spanish Civil War range, and some options in the WWII British, if you filter on UK within the Infantry section.