The J. Paul Getty Museum
Mathew B. Brady
License, verbatimCC0
The J. Paul Getty Museum: image dedicated to the public domain under Creative Commons Zero (CC0), stated on the media record itself ('Rights for Media'), with download clearance.
Mathew B. Brady. Effect of Yankee Shell on the "Teazer.", negative July 4, 1862; print about 1880. The J. Paul Getty Museum.