This Month in Photo of the Day: Vintage National Geographic Photographs
A man plays his guitar for a young girl in Granada, Spain, in this autochrome picture that appeared as part of a photo essay in the March 1929 issue of National Geographic.
An early master of autochrome photography, Jules Gervais Courtellemont was one of the first to embrace the technology when it became commercially available in 1907.
Photograph by Jules Gervais Courtellemont, National Geographic
(Source: National Geographic)