Does this have the telltale swirls (radial lines which curve) of rotocasting?
[img]http://black.net.nz/cym2013/602looksRotocast3.jpg[/img]
But the rest of the photo shows this to be a 1960s Paiste 602 medium high hat:
[img]http://black.net.nz/cym2013/602looksRotocast.jpg[/img]
Did knowing this was a Pasite 602 change your viewpoint? This is one of a number of bell swirl examples I've got which are from cymbals we know are not rotocast
This is why I'm wanting to discuss what patterns are or are not diagnostic evidence of rotocasting. If non rotocast cymbals can have the swirls (presumably an artifact of lathing), and some rotocast cymbals do not have the swirls, then presence/absence of swirls stops being a diagnostic feature just on its own.
The underside of the bell looks like the radial lines are straighter and probably wouldn't be thought of as "curved radial".
[img]http://black.net.nz/cym2013/602looksRotocast2.jpg[/img]
Questions for those with some Rotocast cymbal experience: is the "radial lines with swirl" pattern often more obvious under the bell than on top? Or the other way around? Is one side "safer" as a diagnostic feature? Should the pattern have to be on both sides to be thought "diagnostic"?