I very much appreciate the help. I believe I figured out what the top stamp "Q64" indicated. According to what I've found, the "Q" stands for Quist which was a company that manufactured helmets for Germanicon border guards and police. The 64, from what I've read, indicates the liner size. I have not however been able to figure out what the series of numbers underneath that indicates. I found a few liners on eBay and they usually end at well above $100 or so but to be honest I think that would be well worth it to give this helmet some life again. If I were to list this helmet on eBay I am sure it wouldn't last for more than a day due to its decals and such. They'd pull the auction in a heartbeat. Anyways, thank you all again for the help.