Greetings to all,
Sorry for my late reply. I fell ill and was out for a couple of days. Thank you mark for your very detailed description for the drilling. There is no doubt in my mind that you and William are right to the hole in my helmet. What I really like about this helmet is that the lining and chinstrap are in pristine condition. Yes, the drill hole just adds to it. Piotrek, you are correct that you can see the shadow and some red paint on my helmet. I'm pretty sure that the over paint is original time period. The rough texture seems to be of a sandy texture. Over all I didn't expect such a great responds towards my helmet. I wish to thank every one for their comments and corrections. I just wish to say that every one on this site is so helpfull and professional to individual subjects. I would like to add that I wished I had more knowledge to return the favour to help others too. I guess that day will come. Once again thank you all.