Mathijs - with respect, the china cymbal is first heared on the track 'Some Girls' - it's low trashy sound is very distinctive in the first couple of bars into the song. I agree by 'Emotional Rescue' the China cymbal was used much more. In those days Charlie used a huge 20" Zildjian China with a bigger, more explosive sound than he gets today from the Italian 'Ufip' 18" china.
You might find the link here quite interesting. It's an article written by Richard King - the supplier of Charlies second maple kit. He talks about how Charlie came to get his first original Gretsch maple set.
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www.kingsmusicusa.com]