I won this in a giveaway and thought the coin was supposed to have a minor double die. but Iv'e been examining the coin and cant find it. Can someone please tell me what '15-O-IV' means? I figure that could help me understand what I'm supposed to be looking for. Here is a link to 'Coin Opp', I enjoy their videos and think you will too: https://www.youtube.com/channel/UCh_62JdL7_PH_yyst7Hb-Xg