A "Wealth Management" sin sits beneath a Coutts logo outside the building that houses Coutts & Co., a private banking unit of Royal Bank of Scotland Plc (RBS), in Geneva, Switzerland, on Friday, Feb. 27, 2015. RBS, the U.K's largest government-owned lender, said its Swiss-based Coutts private banking unit is being investigated by German authorities over alleged tax evasion by clients. Photographer: Gianluca Colla/Bloomberg via Getty Images
