Anyone have any idea where a Holton "Revelation", sn 117XXX falls out in the whole scheme of Holtons? Not a Collegiate, not one on the 240 series, later than Rudy's, later than (at least my) Elkhorn. It actually looks a lot like my Elkhorn just from the pic anyway. Same neck, same octave key. I'll be honest, all the Holton body tubes look the same to me too. I personally haven't noticed any large bell/small bell differences througout the range. Any info welcome.