The last one (similar but different to the Jimson sculpt) has details (base and base mark) in common with production from both Blue Box and Rado Industries, but could be neither and is probably from a Hong Kong or Japanese (Yonezawa tin-plate snorkel?) copy of the Corgi model, but who by? Both the last figure and yellow-helmet are polyethylene, the rest PVC of different densities.
Spot-On had a hose guy, also in hard styrene, he normally comes with a heavy plinth base, a slighter oblong one, or - as in my case - neither! A hose could be plugged-on to the back-end of the sculpt, which helped the baseless ones stand-up and two were issued with a meddling kid (Tommy Spot) in each boxed set (Land Rover and fire trailer)