I was just looking at the rear hub of my new Hercules and I think it says "B Type 3". The B is unfortunately pretty lightly impressed in the hub but the 3 is very strong. Does this make it a 1953? I'm not sure how the previous owner arrived at it being a '51. Its always possible with these bikes that the rear wheel is not original but being that its Hercules and the state at which the previous owner got it its very likely to be original. Anyone know why some cranks have "HERCULES" written out and some have "H"s?