Growing up in Mount Airy, Maryland, I'd ride into town with my Dad and along the way we would pass the Cold Storage Facility there. Every once in a while we'd stop and watch as an old switcher would work the facility. It would grind its steel wheels on the rail and halt, push and pull, it was a workhorse. This was that switcher. It moved up here in 1995 and the facility in Mt. Airy closed in 2007. Now in Chambersburg, PA it sits on a siding, not having been used but serving as a reminder to at least one grown up of a days gone by as a boy sitting in the car with his Dad watching it work its magic. SW1, Class DS-3, was built by Electro-Motive on August 14, 1940, #1109. It was reclassified Class DS-3E in 1943 and renumbered 8411, Class SE-1, in 1957. It was sold as Winchester & Western RR 8411 in 1964 and resold as Mt Airy Cold Storage Co 8411 in 1985.