Hand-hammered 15" Emperor Top HiHat cymbal, made for rivets. This cymbal happens to also sound really good as a Medium crash, should anyone be interested. Factory drilled for rivets. Came to me as you see it. 1114 Grams. I don't know this brand, but i suspect it is related to Istanbul Cymbals, if you look at the letterings of their HiHat cymbals vs this one, they seem similar, but that's all I know.  Very very high quality K like cymbal. Look at the pictures and feel free to ask questions. What you see is what you get.