Ben Hains 1890 White's Cave - Humboldt's pillar [Views of Mammoth Cave and Vicinity]
Stereocard Library of Congress, Prints and Photographs Division Call Number/Physical Location: LOT 2853 [item] [P&P], Library of Congress Control Number: 2017650518, Reproduction Number: LC-DIG-stereo-1s09080 (digital file from original, front) LC-DIG-stereo-2s09080 (digital file from original, back)
