The book of the fair : an historical and descriptive presentation of the world's science, art, and industry, as viewed through the Columbian exposition at Chicago in 1893 ... (1893)
THE TOOK OF THE FAIR 4 T5 … On the walls of this section are maps showing the routes of telegraph and telephone lines, and diagrams illus trating the development of the telegraphic system since 1851. As the exhibit is specially made by the department of posts and telegraphs, pictures are also shown of the quarters occupied by…
