AFE, Series I, Number 12708, Mesabi Division, Minnesota, November 28, 1906, Automatic Block System Bridge A8 to Brookston and Interlocking. Located in folder 'Mesabi Div'. Other subject categories: Signals. Initial cataloger's disposition code: X, AFE itself not found but referenced in other documents

AFE, Series II, Number 69.938, Mesabi Division, Minnesota, October 8, 1969, Replace Interlocking at Brook Park and Hinckley with Automatic. Located in folder 'Mesabi Div'. Other subject categories: Signals. Initial cataloger's disposition code: X, AFE itself not found but referenced in other documents