I started cleaning up my newest find, a pre serial number Supraphonic and noticed quite a bit of difference between it and my other Supra, serial number 130519. My father bought Supra #130519 used in the mid 70s. From what I can tell, it was born in 1964. These are both COB.
Several questions come to mind, with pictures attached.
Hoops: Are the pre ser # hoops brass? They seem heavier.
Muffler: Pre ser # has the small knob and the 64 has the baseball bat.
Shell: Very different. The pre-ser # snare has a heavy crimp and deep snare bed. I haven't weighed them, but the Pre # feels slightly thicker. There is evidence of a weld on the pre #, which is not on the '64. The biggest difference is on the inside lip, sort of below the bearing edge. This section is rolled/tucked under on the earlier drum. I have been told that the shell is rather rare, even for pre-serial # Supras. Is this true?
Badges: very similar, but the grommet is slightly thicker on the earlier drum.
Primarily, I'd like to know if the shell on the pre ser # Supra is any more rare or unique than other pre ser # Supra?
Thanks in advance.
jim