Maybe my memory was playing tricks on me, but wasn't a Bessemer & Lake Erie (or railroad like that) 2-10-4 was being restored a while ago? It was a while ago. I believe they did a stationary steam test. Maybe I am imagining things. Any info would be appreciated.
You're correct-Bessemer & Lake Erie 2-10-4 #643 survived the scrapper's torch and for years was stored in the B&LE roundhouse in Greenville, PA. A number of years ago, she was moved to the Pittsburgh area with the intent of running her again. I don't know what has happened to the project, but the locomotive is currently in McKees Rocks, PA subject to the elements and vandals.
Check the following link:
http://www.steamlocomotive.com/texas/ble.shtml
Scroll down to the "Photos" section, there are links to six photos of the 643.