Here is another wonderful and (per the nomenclature for measuring photos at the time) "mammoth" picture by Harry Warnecke.  Arguably the American master of color photography before the advent of the Kodachrome, Warnecke had the New York Daily News construct a photography studio with the exclusive purpose of creating color images for their readers.

Click on image to enlarge

Republican National Convention, Philadelphia

Harry Warnecke, 1940
vintage tri-color carbro print
22″ × 16″