BBC News - Trade secrets of oldest family firm in US: Nearly 400 years ago, in 1623, Avedis Zildjian founded a cymbal-manufacturing company in Istanbul.
Now run by 14th generation family member Craigie Zildjian, along with her sister Debbie, the company has outlasted empires, survived a move overseas to the US, and thrived during the economic turmoil of the Great Depression and two World Wars.
Today, the company controls 65% of the world's cymbal market, and took in more than $50m in revenues last year.