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.
By Bain News Service. Photographer unknown. - Library of Congress, Prints & Photographs Division, LC-DIG-ggbain-12483 (digital file from original negative), archival TIFF version (23 MiB), color level (pick white point), cropped, and converted to JPEG with the GIMP 2.6.1, image quality 88., Public Domain, https://commons.wikimedia.org/w/index.php?curid=6574010