Rare Stradivarius violin on auction block
The “Joachim-Ma Stradivarius” violin, crafted in Italy by Antonio Stradivari in 1714, is estimated to be worth up to $18 million. It is named after two past owners — violinists Joseph Joachim of Hungary (1831-1907) and Si-Hon Ma of China and later the U.S. (1926-2009).