Postcard

Interior of the Detroit River Tunnel, Detroit, Mich.

Color postcard depicting a view along the Michigan Central Railway Tunnel, with a train car in the background.
Printed on verso: Interior of Detroit River Tunnel, Detroit, Mich. The Detroit River Tunnel was built for the M. C. R. R. at a cost of $8,500,000. It is 1 3/8 miles in length. Construction was started in July 1906 and completed July 1, 1910. Electricity, the third rail system, furnishes the motive power for the engines.