Thanks once again; I had forgotten about your very useful information page. It's odd that a google search with my search terms didn't pick it up - perhaps if you added more a little text to the page, google would be able to pick it up and spit it back out when people are searching for the info as I was? I think my terms were "black watch helmet decal."
Though I note that all those words are actually found on the page. Annoying that google doesn't remind me that your page is the best source for what I was looking for.