17" K Istanbul that weighs about 1370 grams (that weight is APPROXIMATE) and is probably a crash.. maybe a "medium" depending on the standards of the sub-era.. by today's standards that is about the weight of a 17" avedis medium thin crash). It appears to have Istanbul Old stamp IIIc, but I'm not a super expert on this, so please look it up if you'd like to be more certain (the location of the star, the shape of the star, and the arabic writing all seem to add up.There's some crac...ks around the bell hole.Overall a beautiful sounding cymbal, and very rare. Thanks for looking!