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Illinois - State Highway 1, U.S. Highway 54, and city route U. S. highway 12 and 20

Illinois - State Highway 1, U.S. Highway 54, and city route U. S. highway 12 and 20 sign.

Michigan Avenue, Chicago.

A lucky shot of City Route US 12-20, albeit not yellow in Illinois.

Photo by Jim Lindsay, 8/21/1958.

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