Burlington Route SW1200 9277 switches in Chicago in December 1969, in this transparency by David Leonard. Delivered from EMD in 1955, the unit became BN 235 in 1970, then BNSF 235 after the AT&SF-BN merger of 1996. Subsequently it is was renumbered to BNSF 3505. Viewer Hayden Lehman reports that around 2008 the unit was sold to Larry's Truck and Electric in Ohio, and in 2017 it was purchased by and delivered to the Pennsylvania and Southern Railway in Chambersburg, Pennsylvania.