Public domain
Newport News, Virginia. A C-3 passenger and cargo boat. The two tall posts in the middle are called "Samson posts" and are used to support derrick arms, cranes, etc, in loading and unloading the ship. They also serve as ventilators, as can be seen from the holes near their tops. The boat being built
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineNewport News, Virginia. A C-3 passenger and cargo boat. The two tall posts in the middle are called "Samson posts" and are used to support derrick arms, cranes, etc, in loading and unloading the ship.. 1941-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.