: These magazines were central to the mid-20th-century European naturist movement, which sought to normalize social nudity as a way to reconnect with nature.
Sonnenfreunde Sonderheft No. 56: FKK Jugend an sonnigen Stränden : These magazines were central to the mid-20th-century
For serious collectors, here is the checklist for the physical magazine: : These magazines were central to the mid-20th-century