In all my time in Korea, I spent many days metal detecting old mountain passes with traffic dated back hundreds of years. I found these two 1898 (Gwangmu Yr 2) 1 Yang coins one day and immediately began to question their authenticity. First, 1 Yang coins are supposed to be silver, yet they rang up on the metal detector like a copper-nickel coin. They also didn't come out clean like other silver coins I found. Finding these coins in the ground is near impossible and would be a startling discovery considering how much weight these coins held during the time. Counterfeit coins from that period carry a decent premium at the auctions, but I wanted to see what you guys think. Were they contemporary counterfeits from the time? Special trial coins? Aliens?