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[Untitled photo, possibly related to: Freight train operations on the Chicago and Northwestern Railroad between Chicago and Clinton, Iowa. Every time a train is passed, the rear brakeman of each train steps out on the caboose platform, and if all is well, as in this case, gives the other brakeman the high sign]. Sourced from the Library of Congress.

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[Untitled photo, possibly related to: Freight train operations on the Chicago and Northwestern Railroad between Chicago and Clinton, Iowa. Every time a train is passed, the rear brakeman of each train steps out on the caboose platform, and if all is well, as in this case, gives the other brakeman the high sign]. Sourced from the Library of Congress.

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