The statue on this line is one of many wayside signals made by the Union Switch and Signal Company (US&S). When installed, these signals contained an invention that received
US Patent #1,453,535, issued May 1, 1923. This fact is actually featured on the back of many signal cases still in use on this line. However, these were recently replaced with LED fixtures.
There are at least two models of US&S signal used on this line. The more common one is still manufactured by its successor, Ansaldo STS USA. This is simply known as the Transit model. Features include 5-inch aspect lenses and a variety of unit configurations.
The other US&S model frequently seen on this line is not manufactured by ASTS, but a similar model is being made. I am calling this model the N3, as the modern ASTS N2 is similar in appearance to it. The N3 has a slightly larger, 6.25-inch aspect diameter and uses one of two lengths of hood, though I have seen one N3 signal on this line that has both hood lengths installed.
Other recent signal installations on the 7 line include wayside signaling by Safetran Systems Corporation.
The newest installation (not yet active, but signals can be seen near the Times Square interlocking) uses signals manufactured by Alstom. These appear to be their AT model, which gets its roots from a model produced by the General Railway Signal Company of Rochester, New York.
