Zildjian Vintage 1970s 22 inch Ride Cymbal

A fabulous vintage A. Zildjian 22" ride cymbal that I believe is from the early 1970s.  The cymbal weighs 3414 grams and does need to be cleaned (I figure it is best to let the actual user do that since I don't know what the hell I'm doing!) but other than that it is in excellent condition with no cracks that I can see.