Searching for the link often leads to a mix of vintage collector archives and digital download platforms. This specific issue is part of a historic series of German naturist (FKK - Freikörperkultur ) publications that date back to the mid-20th century. Where to Find Issue 23
Many special issues, such as Sonderheft 226, focused specifically on the "World of FKK Youth," highlighting the family-oriented nature of the movement. sonnenfreunde sonderheft magazine 23 link