hello everyone. today i came across an unusual m42. It was stamped with Q66 but it had riveted airvents instead of stamped airvents:shok_yikes: is this possible? i passed it up but if it turns out to be good i can always go back to the shop and buy it. The liner and paint looked good to me but i noticed the airvent and they were definantly riveted and it had a flared edge. could this be a post war modification or something completley different. all help would be greatly appreciated. thanks