Hi everyone! I just recently purchased this knife on ebay and it's in very good condition, and for that reason it worries me a lot. The knife is a WW2 Mark 2 Kabar USMC fat handle knife. I had the seller agree to give me a refund if it turned out to be fake since it did not come with any authentification, but I only have so much time to prove if it is or isn't authentic, and I definitely do not have the time to go to see an expert in person. Can some of the more experienced members help me out by looking at the attached pictures and telling me their opinions about authenticity? Also could you all also possibly give me advice on how I could, when I have the time, seek someone out who could get me an actual COA?