Hi
Tartare,
Sorry for the thread hijack, just one question leads to another!
To answer your very first original question, the cloth helmets were G-Types. In the below image of two of my G-Types, the earlier ones were Blue, then later they went to Green:
...And here is one of my Mk1A's with the G-Type propped up inside it. Ignore the mask, it is an
R-Type (Like an H-Type, but no air inlet valve) used in the Dominie I believe with Gabb toggle harness for Headset fitting, so wrong for the Vulcan, but you get the idea, just imagine a P/Q or earlier A-13...
Cheers, Scott.