Section of Penn. R. R. tunnel under the Hudson River at N. Y. City, exhibited at World's Fair, St. Louis, Mo., 1904. Diameter 21 feet
Saint Louis, Missouri · 1904
Section of Penn. R. R. tunnel under the Hudson River at N. Y. City, exhibited at World's Fair, St. Louis, Mo., 1904. Diameter 21 feet, Saint Louis, Missouri, 1904. World's Fairs — The 1800s Archive, from the Library of Congress record.