File:Map Showing the Telegraph Lines In Operation, Under Contract, and Contemplated to Complete the Circuit of the Globe, 1869.jpg
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Map_Showing_the_Telegraph_Lines_In_Operation,_Under_Contract,_and_Contemplated_to_Complete_the_Circuit_of_the_Globe,_1869.jpg (800 × 515 pixels, file size: 153 KB, MIME type: image/jpeg)