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The below photograph is described in the Apollo Lunar Surface Journal as a medium resolution image of AS17-137-20900 - The comment with the frame from The Apollo Digital Picture Library is as follows: Station 2. First frame of Gene's initial cross-Sun stereo of Boulder 1. This frame contains many artifacts. Of great interest is "whomever" appears to be standing next to 'Boulder 1' on the far right side of the frame. It is not a U.S. astronaut. It should be noted there are 10 frames presented in the "Boulder 1" sequence taken by Gene Cernan with an additional 6 frames taken by Harrison Schmitt. All photos are basically of this same side. No rear or backside views are listed. A straight-on frontal view of the 'Boulder' is never shown. As for the figure on the right- he just "disappears" in the succeeding frames. However, he may have left something behind. Note the gnomon in the foreground and the absence of boot prints. (According to the Apollo 17 Science Report the gray scale on the gnomon is 30 cm long. The color scale on the gnomon leg is 15 cm [5.9 inches]long. The upper portion of the gnomon rod is approximately 30.5 cm or 12 inches.)

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A side by side comparison of Apollo 17 astronaut Harrison Schmitt (The person who should be in the photo) and the unknown individual is made in the below image. (Presentation based on frames courtesy of NASA - cropping & labeling have been added.)

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