https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12338446![Bethlehem-Fairfield shipyards, Baltimore, Maryland. Erecting a flat keel. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_square/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc4NTExNDktaW1hZ2UuanBn.jpg)
![Bethlehem-Fairfield shipyards, Baltimore, Maryland. Erecting a flat keel. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_square/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc4NTExNDktaW1hZ2UuanBn.jpg)
Bethlehem-Fairfield shipyards, Baltimore, Maryland. Erecting a flat keel. Sourced from the Library of Congress.
Bethlehem-Fairfield shipyards, Baltimore, Maryland. Erecting a flat keel. Sourced from the Library of Congress.
View public domain image source here
Public DomainFree CCO U.S. Government image for Personal and Business use