Washington, D.C. "Marmon Motor Car Co." I'll say circa 1915 and wait for the experts to weigh in. Harris & Ewing Collection glass negative.
[The consensus seems to be that this is a 1914 Marmon "48" seven-passenger touring car, which listed for $5,000 -- a staggering sum in those days. It's riding on 37-inch Firestone "Quick Detachable" natural-rubber tires.] | Click image for Comments.