722 Twelfth St., NW, Washington, District Of Columbia. County/parish: District of Columbia.
Added to the National Register of Historic Places June 13, 1988. NRIS 88000652.
1 contributing building.
The Chesapeake and Potomac Telephone Company, Old Main Building is a historic structure located in Downtown Washington, D.C. It was listed on the National Register of Historic Places in 1988.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/117692025