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Early photograph showing left side of staircase before restoration and before passageway closed by infill added for support, as seen in 2 photos at right.
Photograph by Dan Leyrer as member of the Blom/Tulane expedition, 1930. Scanned from 35mm slide of the original photograph (M.31.4.365). Reproduced with permission of the Middle American Research Institute (MARI), Tulane University.