"Women's suffragists demonstrate in February 1913. The triangular pennants read "VOTES FOR WOMEN". The negative is labeled "ROSE SANDERSON", the woman holding the trumpet. An adjacent photograph in the series (LC-DIG-ggbain-12482) contains a flyer labeled "COME AND WATCH SUFFRAGE SPREAD" that identifies the event as one sponsored by the National Suffrage Association."
Thanks Wikipedia for the words and Library of Congress for the picture!