E180th St 2011
E180th St 1912
While all the other single interlocking towers on the IRT were closed in the 1950's and 60's to make way for extensive "Panel" type Master Towers, E180th St had survived due in part to its complexity and late model 79 lever US&S Model 14 machine,which would have been much newer than the original IRT signaling.
Here are some additional interior photos from Subchat's G1Ravage. First the US&S Model 14 machine with some of the high levers already canned off due to the creeping re-signaling.
At the top of the model board we find some extended track circuit diagrams for approaching trains up and down the various main lines.
And some better shots of the forest of "3-headed monster" IRT signals.
Of course a bad photo location can be overcome with video like this one out the side of a southbound #2 train showing both the tower and its signature slip switch.
Anyway, farewell E180th St. It's a shame you didn't get the respect in death that 99 years of service should have commanded.