Public domain
German submarine U20, on Danish coast, said to be the one that sank the LUSITANIA
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Subjects
Credit lineGerman submarine U20, on Danish coast, said to be the one that sank the LUSITANIA. 1916-01-01. George Grantham Bain Collection, Library of Congress. Public domain.