It's a master die doubling on the upper left of the 8 in the date. Master die gouge to the upper right of the 8. Line through the center a die gouge. The reason there is no 8/7 is that a very high number of dies have that die gouge and extra loop on the 8 is from the mater dies. A very large percentage have this from that year. The master dies contain the Date digits each year. Over dates on 20th Century coins are from using two different hubs, not an over date in the sense of the 19th Century coins.





















