Hello, I am new here, I have a few questions about selling a knife on Ebay. i have a 1917 A.C. CO. Commando knuckle knife that i have tried to list on ebay a couple of times and they keep taking it down. The reason is because it has knuckles that resemble brass knuckles or something. Is this knife considered illegal? How could i go about selling this knife on ebay or maybe other means of selling it?