Not a vintage instrument, I know, but thought I'd offer here before going to fleabay. Excellent condition Zildjian K Constantinople 20" Medium Thin Low ride w/3 rivets. I bought this new about this time in 2010 & haven't beat the crap out of it. I drilled the rivets. Has a nice low pitch, good stick definition, good wash, but it never gets out of control & overpowers the stick definition. Good solid bell sound. The decay is about like a fast crash.
How about $300 shipped. PayPal only & can only ship in the lower 48 states. I'm a first-time VDF seller, but have sold quite a bit on ebay, operating under the same handle "groovesonly". I can hook you up with a sound file later today if you'd like one.