Chicago Surface Lines

The Chicago Surface Lines (CSL) was operator of the street railway system of Chicago, Illinois, from the years 1913 to 1947. The firm is a predecessor of today's publicly owned operator, the Chicago Transit Authority.

Chicago Surface Lines

The Chicago Surface Lines (CSL) was operator of the street railway system of Chicago, Illinois, from the years 1913 to 1947. The firm is a predecessor of today's publicly owned operator, the Chicago Transit Authority.