That's what age she was when she first did Page 3. Obviously different times 40 years ago, but I'm guessing those photos have been out there ever since the internet became a thing.Some one has posted pictures a topless 16 year old Samantha Fox I had to report to Reddit because I think those pictures may actually be illegal I reported it the sub Reddits mods if they don't do anything I will go Reddits admin.
Just looked up the law and it seems The Sun broke the law (there's a surprise) even back then by publishing them as it's covered by a law from 1978:
"In the UK the age of consent for sexual intercourse is 16. However, it is an offence to make, distribute, possess or show any indecent images of anyone aged under 18, even if the content was created with the consent of that young person. The law is contained in section 1 Protection of Children Act 1978."