(Above)  The US&S interlocking machine inside Delray Tower, in a 2003 photo.  (Below)  The same interlocking machine from the other direction.  The black levers are switches, blue levers are locks, and the brown levers are out of service.  The end lever, #55, is the directional lever.  The "pistol grip" levers above the "armstrong" levers run the signals in the interlocking.  [Photos and information, Nathan Nietering]

Above, another photo of the US&S interlocking machine at Delray with the model board overhead.  [Wade Streeter].  The model board is shown below in more detail.  In this 2003 photo, note that many of the original signals and switches which were in service in 1943, have been removed and taped over.  [Nathan Nietering photo]