Baltimore & Ohio 1
Burnside, IL 1
Chicago & North Western 1
Chicago & Western Indiana 2
Chicago, IL 1
Chicago, Rock Island & Pacific 1
electric interlocking 1
Erie 1
Evanston, IL 1
General Railway Signal 1
grade separation 1
Hammond, IN 1
Illinois Central 1
interlocking 3
interlocking towers 3
Main St., Evanston, IL 1
mechanical interlocking 2
multiple unit electric interlocking 1
State Line, IN 1
Sterling, OH 1
Union Switch & Signal 1

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