"The license plate is almost as large as her automobile, but Miss Mary Bay likes her car because it is easy to park. Miss Bay is shown braving the traffic of Washington." January 29, 1924. View full size. National Photo Co. Collection.
I've seen lawnmowers bigger than that thing. I suppose back in those days of 5mph driving you didn't have to worry about the fact you have no protection whatsoever. Great photo, I love it.