Historical Sepia Limestone Mining Operation

A massive early underground limestone mining operation following a high-quality rock layer deeper into a Kansas City hillside, multiple mine openings and workers visible at different depths, freshly exposed stone, rough timber supports, horse carts carrying limestone away, realistic period documentary photograph, sepia monochrome, heavy grain, dust particles, scratches, imperfect exposure, no modern equipment, no documents, no papers, no maps, no text, no cartoon, no illustration, no faded edges, no blur or gradient edges.