Principio Iron Works. 1731-1775. Cecil Co., Md.. iron works (or owner) --

Access_id	60205 (1)
Rediscov_id	29472 (1)
Marker	* (1410)
Name	Principio Iron Works (1)
Active date	1731-1775 (1)
Location	Cecil Co., Md. (24)
Trade	iron works (or owner) -- (148)