Not straying too far from the topic at hand -- another question comes to mind. Alvin Langdon Coburn produced a series of color photos of Twain. One of Twain in the Oxford gown was reprinted in the September 1975 issue of National Geographic. I understand that other publications have also reprinted the same Coburn photo in a "reversed" mode. Does anyone know if National Geographic accidentally "flipped" the negative when that issue was printed? Which is the correct angle? Thanks, Barb