Previous Next Former PRR position light signal serves as the eastward absolute signal on Conrail's SC&S at Calumet Park Interlocking, in September 1992. Doug Davidson photo with permission Photo By Doug Davidson Year 1992 Original Date 9/1/92 Location City Calumet City IL Additional Galleries Doug Davidson's Chicagoland area Conrail Memories Collection CRHS Conrail Photo Archive Contributions
