Racking (Pacing) - Early photography, Public domain image
Picryl description: Public domain image of Eadweard Muybridge's photograph, free to use, no copyright restrictions. Eadweard Muybridge was an English photographer known for his pioneering work in photographic studies of motion, and early work in motion-picture projection.
1878 - 1879
J. Paul Getty Museum
Digital image courtesy of the Getty's Open Content Program.