Map of Telegraph Lines In Operation, Under Contract, and Contemplated to Complete the Circuit of the Globe
World map shows lines constructed and in operation, lines under contract for construction, and Mr. Cyrus W. Field’s proposed lines. A detail of distances in miles of the contemplated lines between the United States and Australia, and between the United States and China is also offered.
H. H. Lloyd & Co. Publishers, New York. C.W. & C.B. Colton
Out of copyright. Marking on map suggests year of publication was 1867 (or 1869).