text: "Peking Police Force" (of the older Qing variety). Keystone Viewing Company, 1919. Source: Digital Collection of the Library of Congress (Public Domain). Given the popularity of these slides, this was probably one of the most widely distributed images of traditional Chinese swords in the west during the 1920s. Unfortunately I have yet to find a copy of this side in decent condition to add to my own collection. Note the variety of blade profiles apparent in this photo.