Total Wire Mileage Of Western Union Telegraph Company, Annual Data Only
United States
Annual
Thousand Miles
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Source | |
Organisation: | The National Bureau of Economic Research |
Website: | https://www.nber.org |
Publication: | Construction |
Series: | a02134 |
Download Page: | http://www.nber.org/databases/macrohistory/contents/chapter02.html |
Download Url: | http://www.nber.org/databases/macrohistory/data/02/a02134.db |
Period: | 1913 - 1942 |
Date Accessed: | Saturday, February 8, 2020 |