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 consumers in Boise, Idaho, with 94 percent of those who tried them indicating they would buy the product. The product was sold as "Post-its" in 1979 when the rollout introduction began, and was sold across the United States from April 6, 1980. The following year they were launched in Canada and Europe. In 1996, the company's data storage and imaging divisions were spun off as Imation Corporation. In doing so 3M shed 20% of its sales, employees and product lines at a cost of only 5% of its profits and immediately looked much improved in the estimation of Wall Street