Photographer John C.H. Grabill took pictures of the American West between 1887 and 1892, and sent 188 of those photographs to the Library of Congress for copyright protection. Those photographs are now in the public domain, and give us a good look at the people and places of the frontier. The Denver Post published a collection of the pictures, including this portrait of two Oglala chiefs, American Horse and Red Cloud, taken in 1891. The border is printed with "The Grabill Portrait and View Co., Deadwood, S.D. Our company is incorporated under State Laws. Views all copyrighted. Will give a handsome reward for detection of anyone copying our pictures."
Link | The Grabill Collection -via the Presurfer