From the Nashville Union and American, 9/17/1861, p. 2, c. 4
MANUFACTURE OF LARGE GUNS.
The Tredegar Works in Richmond are at present manufacturing the largest caliber of guns, shells, balls, etc. The capacity of the establishment is immense, there being no less than fifteen hundred men now engaged in manufacturing railroad iron and ordnance of the heaviest description. A visit to this great workshop offers many objects of interest to strangers in Richmond.