The only photo known to exist of Billy the Kid just rang up a winning bid of $2.3 million at an auction. The photo was actually a tintype and is believed to be the source of myth that Billy the Kid was left-handed, which is supported by the portrayal in the image that his pistol is worn on his right hip with the handle reversed.
The ‘gotcha’ is in the method of making a tintype image, which is printed as a negative image on a black-enameled sheet of iron. The black enamel background allows the image to appear as a positive once it is burned in. Further evidence to debunk the left-handed myth are the position of Billy the Kid’s belt buckle and buttons.