Thank you very much Prescott. If you are still there, could you tell me how I could have got to this article please ? I had searched "armour", "helmet" etc..without success.
If it is any help, scotbumkin, I got the answer when I looked up armour and helmet in Bradford's Crossword Solver's Dictionary. It's where I get a lot of my answers!!
Thank you Quinie, I don't know this dictionary, might go on my Xmas wish list then.
Not rocket science indeed Aquagility, I obviously did not ask Google properly, I am only a country bumpkin after all.