An article by James H. Hobart describing the various classes of signals, method of working, etc.


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    Title :

    Railway safety and danger signals


    Additional title:

    Ry. Rev


    Contributors:

    Published in:

    Publication date :

    1891


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English