In those days, I guess that he must have played Slingerland...
AND!!
Please look at the white circle.
(The following is the enlarged pic.)
WOW, this is the 5 (or 7) lines COB Dyna-sonic!!
(We know the 7-grooves are not so deep. But,
it seems that the grooves are very deep in this picture. Therefore,
I judged that they were five lines first...)
I have heard that he was playing only WMP wooden Dyna-sonic.
But, we can see that he was also using COB Dyna-sonic!!
Though I don't know when Zildjian took it, I think
that it's a very interesting shot.