Originally Posted by Hot Water:
Also note that the Strasburg Shop Removed the smoke box extension, that #90 originally had, as shown in the color photo from 1968, posted above. She looks a LOT nocer with that "normal " smoke box.
The "extendo-box" got pulled during a rebuild in the early 1990s. 1993 I believe. I recall an article about the smokebox and a SRC higher up, Linn M. or Kelly A. perhaps, describing the difficulty firing it, inability to get a clean stack when firing and other performance related points. Wish I could find that piece...