Excerpt from The Standard Cipher Code of the American Railway Association for the Use of All Departments of the Railway Service
The Standard Cipher Code of The American Railway Association has been compiled for the use of the members of The American Railway Association in their telegraphic communications with each other and for intra-company service.
The phrases have been carefully selected from a very large number submitted by officials of each department and it is believed that they will be found sufficiently comprehensive to cover all the ordinary requirements of railway business.
A number of extra code words will be found under each heading to provide for additional phrases. In order to prevent future confusion in the use of these, it is requested that all suggestions for additions be submitted to the Committee on the Standard Cipher Code of The American Railway Association. When approved, notice of such additions will be sent to all registered users of the Code.
The initial letter of each code word corresponds with the initial letter of the general subject of the message as given in the classified headings.
The index on pages v to xvi has been arranged with cross references for convenience. Familiarity with these pages will materially aid in the ready use of the Code.
Great care should be exercised in writing a cipher message for transmission. Each letter should be written distinctly and the whole message should be carefully revised, and checked back, before delivery to the operator.
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