Trumpy-- you hit it right on the head, those levers are for switching trains in southwest detroit, they are located in Delray Tower, one of the last, if not the last remaining switching tower in this area,its CSX owned, and the levers used to be connected directly to the switches by heavy steel cables, now they are connected to relays and then out to the track...as much as id love to be working on the equipment, i have a good friend who is an operator there for 30+ years, i was paying him a visit and rewrapped all the handles on the levers one night.
anymore questions or if you guys want to see more pics just drop me an email