BLI AT&SF Alco PA/PB (N) Posted on April 4, 2020July 13, 2020 by Eric Hiser Broadway Limited PA/PB in N scale. Photo courtesy of BLI. Broadway Limited has released Alco PA/PB in Warbonnet paint in N scale. These are good for the PA before the MU was added to the nose. Thanks to Steve Sandifer for this update. Posted 4/4/2020.