Colour Climax Corporation is a porn company with the dubious history of being able to get away with making child porn in Denmark in the 1970's:
Colour Climax was one of the only large-scale commercial producers of child pornography to openly advertise the fact. It produced the first European commercial child pornography films. From 1969 to 1979, Color Climax was responsible for the relatively large-scale distribution of child pornography. Between 1971 and 1979 the company produced 36 or more 10-minute films for its Lolita series. The films featured young girls, mainly with men, but sometimes with women or other children. The girls were mainly aged C7–11, however some were younger. Titles included Incest Family, Pre-Teen Sex, Sucking Daddy and Child Love. Though participation by such a mainstream studio was unique to Denmark, it generally did not reflect a widespread societal acceptance of child pornography in the country at the time
We are talking about almost 11 years of legal peadophilia on film. There is a lot of research to be mined here. Like who was travelling to Denmark in the 1970's, like politicans celebrities etc.