“Leather straps hang from the wire and brush the brakeman to get his attention about a bridge or a tunnel”

https://streets.mn/2025/05/23/minneapolis-twenty-ninth-street-railroad-depression-part-one/

Fun history, especially for bike riders of the now Minneapolis Greenway. Before Boston’s big dig there was the Milwaukee Road trench of WW I, with several SCOTUS rulings.

Straps similar to the height chain at garage entrance.