The Dravo Contracting Company was justifiably proud of the towboat Wm. Penn that the company had built for the Dravo subsidiary Union Barge Line (UBL) in 1940. In the September… Read More
The Dravo Contracting Company was justifiably proud of the towboat Wm. Penn that the company had built for the Dravo subsidiary Union Barge Line (UBL) in 1940. In the September… Read More