Atlas HO Scale Signal Tower Kit ATM704
The Atlas HO Signal Tower models the signal towers once found all along North American railroads. These towers were locations for railroad men to monitor the railroad, set switches, and be an observer "on the scene". The tower is also referred to as an "Interlocking Tower", as they were often found at junctions and crossovers. The bottom floor housed track ciruit relays, with the top story housing the Tower Operator who actually threw the switches. Technology has eliminated all but a handful of these towers. Some have been preserved in railroad museums.