Viewer Adamskostum (German for "birthday suit") has generously shared some material from his personal collection of photos from the German Jungborn and Herrenpark components of the Friekorpkultur (free body culture) movement of the period ca. 1890-1940. The FKK trend continues in the modern era, as anyone who has been to a German beach or lake shore can attest. We start with a characteristic photo of a large group of men exercising outdoors. There's a movie later in the series.