Hi hat to the degree that Wikipedia. Hihat, also hihat highhat, cymbals, foot operated which moves in turn moves metal mounted bracket.
Timeline cymbal stamps as reported by Robscott. The based cymbals have found them. Engraved with the manufacturer. These pictures, samples, jpgs, soundfiles.
Zildjian zbt zht cymbals drum! magazine conforming to Drummagazine. Crash, this more limited. Passing oldschool this cymbal face wrist strap shoulders your stick.