Not a razor, but a pure load of BS about an absolute FAKE P.O.S.
CSN Marked Folding Knife Identified to Crewmember of CSS Morgan | eBay
The knife pictured is a Japanese piece of junk made in the 1950's or 1960's. Somebody decided it needed to be valuable so they stamped CSN on the blade, made up a fake name tag, and made up a story about it.
One of the more blatant fakes I've seen in a while. There are LOTS of fake/counterfeit knives on ebay. Some guys have no idea they're selling a fake, while others have a good business of making fakes and selling them to the unwary.