Sancy Hope diamond. The Sancy was in the collection of Vasiliy Rudanovsky until 1828 when purchased by Prince Demidoff for £80,000. It remained in the Demidov family collection until 1865 when sold to Sir Jamsetjee Jeejeebhoy, an Indian prince, for £100,000. He sold it only a year later, creating another gap in its history. It reappeared in 1867, displayed at the Paris Exposition, carrying a price tag of one million francs; the gem then vanished again for forty years. The Sancy next surfaced in 1906 when bought by William Waldorf Astor, 1st Viscount Astor, from famous Russian collector A.K.Rudanovsky. The prominent
3M Technologies Corp. for about $37.4 million in cash, after AiT had strongly hinted it had put itself on the auction block. On December 20, 2005, 3M announced a major partnership with Roush Fenway Racing, one of NASCAR's premier organizations. In 2008, the company sponsored Greg Biffle in the NASCAR Sprint Cup Series as he drove the No. 16 Ford Fusion. In addition, on February 19, 2006, 3M announced that it would become the title sponsor of the 3M Performance 400 at Michigan International Speedway until 2011. On April 4, 2006, 3M announced its intention to sell its pharmaceutical non-core business.