CC0 · no rights reserved
Battenberg's Course Indicator
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This mechanical device, designed to solve problems involving the relative velocities of two ships at sea, was invented in 1902 by Louis Battenberg in England. The inscriptions read "Battenberg’s Course Indicator U.S. Navy Mark II" and "F.A./J.Q.M. 1924."
National Museum of American History’s own descriptionSubjects
Credit lineBattenberg's Course Indicator. Battenberg, Louis. National Museum of American History, C. R. Hoshaw. CC0.
