Mary Perkins sold for £2 million in 1980, and continue to receive income from. After the sale the couple moved to Guernsey, where Mary's father had retired. Mary and Doug Perkins established Specsavers in Guernsey in 1984. In 2007 it was the largest privately owned opticians in the world, with nearly 900 stores across the UK and Europe. By 2011 the company had an annual turnover of £1.5bn and over 30,000 staff in markets in the UK, Europe and Australasia. Her current title at Specsavers is "founder". Dame Mary sits on the company board, oversees business development and has particular responsibility for
Perkins v. Benguet Mining Co. of general jurisdiction. It represents one of the rare instances in which a state's exercise of general (as opposed to specific) personal jurisdiction over a non-resident will be deemed to comport with the requirements of due process, due to the non-resident's extensive activities within the state. Perkins v. Benguet Mining Co. Perkins v. Benguet Mining Co., 342 U.S. 437 (1952) was a United States Supreme Court case which held that an Ohio state court could exercise general personal jurisdiction over a foreign corporation on the basis of that company's "continuous and systematic" contacts with the state of Ohio. Benguet Consolidated