The Presidential Collection Room, now the China Room, was designated by Mrs. Woodrow Wilson in 1917 to display the growing collection of White House china. The room was redecorated in 1970, retaining the traditional red color scheme determined by the portrait of Mrs. Calvin Coolidge--painted by Howard Chandler Christy in 1924. President Coolidge, who was scheduled to sit for Christy, was too occupied that day with events concerning the Teapot Dome oil scandal. So the President postponed his appointment, and Mrs. Coolidge posed instead.