Quote Originally Posted by RCCrawler View Post
I bought an old Vault door that was originally installed in the 30's, in the process of moving it we bumped the lock that unknowingly had a glass vial of some sort of OC in it. I can say for sure that stuff didn't loose any strength after 80+years.
That would not have been OC. Most likely CN, which is what the military used prior to CS.