That was my Sound King you saw on ebay. I had a change of heart and decided to keep it instead of sell it. It is a 1963 and it is a chrome plated brass shell without the lines. Seems they made them that way from late 1962 to the end of 1963 production. For whatever reason Slingerland decided the shell needed lines on it for 1964. I believe the shell was the same as the festival, the difference being in the butt and throwoff. Mine is the 8-lug version, but they also made a 10-lug version, which from what I understand is even more rare than the one I have, being basically a 1 1/4 year only run.