Just to give you an idea where the signal is, Union Station is to the left and the Amrak siding is the first track to the right. The next two tracks are Union Pacific's busy directional north main lines from Texas through Arkansas. The Little Rock & Western has a track to the right of those shown. Amtrak's daily Texas Eagle, Numbers 21 and 22, stops here at midnight and 4:30 a.m.
The signal in question is the one to the right of the CP-X346 mileage marker. We are looking east. The tracks curve under the highway bridge to the left and cross the Baring Cross bridge over the Arkansas River before heading to Union Pacific's busy North Little Rock yards and Jenks Shops. There are 4 signal lenses here: Top is Green, second one down is Yellow, third one down is Blue, and the bottom is Red. I've only seen the blue signal one time when there were more tracks beyond with a work railcar parked on it.
Just behind the signal, the Amtrak siding switches to the main line and the upper green signal lights up. The top green signal has "43983-110X" engraved on it.
Measurements: Base Plate is 16 1/2 inches wide as viewed on the left photo (from the front of the signal) and 11 1/2 inches wide as viewd on the side photo. The attached signal's plate, which is bolted on the base plate, is 10 1/2 inches on each side. The signal from it's base to top is 68 1/2 inches high (from the bolted-on base). "42275" is engraved on the base.
Back of signal and the other side of the signal. The signal faces west.
The base as seen from the front of the signal.
Base from the back of the signal.
Behind the signal boxes.
Just a couple of scenes of the area around Union Station. The Amtrak office is a polling place and today was election day.
Union Station viewed from the east. It is now mainly an office complex.
Track level.