English: Caption inscribed on photo: "(Illegible 11-17-04?) Illinois Tunnel Co -- Typical Street Intersection". The Illinois Tunnel Company later became the en:Chicago Tunnel Company, a narrow gauge underground common carrier railroad serving downtown Chicago.
Unclear. Substantially identical text was published attributed to Frank C. Perkins (An Electric Underground Freight Railway, Modern Machinery, Vol XVIII, No. 6 (Dec. 1905); page 321) and attributed to George W. Jackson (The Chicago Freight Subway, The Americana -- A Universal Reference Library, Volume 4, Scientific American, 1905; page 345). The photo illustration is almost certainly an official PR photo released by the Illinois Tunnel Company.
Other versions
Probably not the same intersection, and with the camera moved forward so you can see around the corners to the side.
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{{Information |Description={{en|1=Caption inscribed on photo: "(Illegible 11-17-04?) Illinois Tunnel Co -- Typical Street Intersection". The Illinois Tunnel Company later became the en:Chicago Tunnel Company, a narrow gauge underground common carri