I will post pics as soon as I am able. The reason I think the sprocket is wrong is because it is actually worn a small spot into the frame from being pedalled. I figured it must be that or maybe the bearings need to be replaced. I don't know anything about skiptooths other than the pics I'ved seen so you guys would be better at telling me that. The thing that confused me most were the forks. The forks are different than the 51 and I've since found a pre-war Schwinn with the same forks so maybe I'm off base. Maybe it's older. I would love to convert it but if I shouldn't I'm down with that too. This is exciting!