What does SN stand for?

MLA style: "SN." Acronym Finder . 2012. AcronymFinder.com 3 Jun. 2012 http://www.acronymfinder.com/Sacramento-Northern-(railroad)-(SN).html
Chicago style: Acronym Finder . S.v. "SN." Retrieved June 3 2012 from http://www.acronymfinder.com/Sacramento-Northern-(railroad)-(SN).html
APA style: SN. (n.d.) Acronym Finder. (2012). Retrieved June 3 2012 from http://www.acronymfinder.com/Sacramento-Northern-(railroad)-(SN).html

Sacramento Northern (railroad)

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