BOSTON (REUTERS).- When redecorating his home some years ago, financier Henry Kravis sold a painting by John Singer Sargent to the Museum of Fine Arts in Boston. The painting — “Charles Stewart Sixth Marquess of Londonderry, Carrying the Great Sword of State at the Coronation of King Edward V11 August 1902, and Mr. W.C. Beaumont, his Page on That Occasion” — is one of thousands of works that will now be displayed at the museum’s new Art of the Americas Wing, which opens to the public on Nov 20. “This is the kind of Sargent that is a real opportunity for a museum because it is not the kind of Sargent that is popular in commercial terms,” museum director Malcolm Rogers told a news conference on Friday to launch the wing. Hanging close to the “Lord Londonderry” painting is Sargent’s immensely popular 1882 painting, “The Daughters of Edward Darley Boit.” Sargent is one of hundreds of American artists represented in the Art of the Am