Republican National Convention at Chicago, June 2, 1880,

“Photographed Instantaneously by C. D. Mosher, while the Convention, was in Session, shows the President, Delegates, Reporters, Prominent Men on the Platform, Visitors in the Gallery, and Gen. Garfield delivering his famous speech, a complete copy of which is hereto subjoined, together with his latest Photograph and Biography.

The above Photograph was taken while the Convention was in session (and they knew nothing of it), and is the grandest triumph in Photography the world has ever seen.”

Garfield Campaign Souvenir, 1880 by C. D. Mosher, National Historical Photographer, 125 State Street, Chicago. (PDF)