| Pan American Photo Art Co. A thousand Mexican sombreros (hats), Mexico City market 1902 (ca) Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s32910 (digital file from original) LC-USZ62-99681 (b&w film copy neg.) LL/109561 Salt Lake City, Utah, U.S.A. : J.B. King Publisher, c1902.
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