The truss rod mast arm was first used in the mid 1950s, and became the most common way to suspend signals in New Jersey, whether vertical or horizontal. Today, they are still widely used in new installations.
Left: Along with the banner image at the top of this page, the photo on the left is from Camden in 1956 showing brand new Crouse-Hinds type DT signals on shiny aluminum poles with horizontal truss rod masts – definitely an “old meets new” kind of look!
Right: These mid/late 1950s GE “Streamline” clusters in River Vale were favorites of collector Steven Conboy, who grew up in the area. Speaking of Steven, check out the photo carousel below.
In 2017, Steven Conboy sent me a lovely set of photos that he took of a truss rod signal installation in Totowa, NJ – a traffic light that I am very familiar with. The 8″ lamps are early LFE-Automatic incandescent signals (check out the cool logo on the closeup photo), from the late ’60s or early ’70s, while the 12″ arrows are by Marbelite. I really dig the green fading to yellow. Great photos as usual, Steven!