2013 Major Insufficient Inking Error $1 FRN One Dollar Federal Reserve Note. This is my unicorn FRN. I was debating on sending it in to see what errors and what kind of grade it might receive. First it is insufficient ink on both the front and the back. Next is the size difference of the bill. It’s like it’s 3%-5% different in the actual size of the bill. I had some other collectors look at it and they were as stumped as I was. Anyways I will let you all look at it and decide the value.check out all the pictures and judge this amazing piece for yourself. NO RESERVE!!!!