I am curious about this woman and nudist models of that era in general. Was Cecile Alain a professional model who agreed to be photographed in the context of a nudist camp? Was she just a nudist who was very cooperative with some photographer?
Some of the nudist photos seem clearly in the pro model category:
Others seem quite real; like this one (which I love)
It is difficult to imagine that so many nudist, most of whom had jobs and lives in the outside world, would agree to be photographed and have their photos published in magazines.