Omigod!
Been a LONG time since I saw those photos!
Okay, the pics date back to the mid-1970s and are scanned from a British girlie mag called Mayfair. The model is Frances Voy, who was kinda popular for a short while as a topless Page 3 girl in the tabloid newspaper The Sun and then did some more explicit stuff for the nudie mags afterwards.
Hate to disappoint you, but she's probably almost 50 years old now!
EDIT: Did a quick search and found a small scan of the cover of that issue of Mayfair from 1978:
EDIT: This is ridiculous! Why is the word 'm*a*g*a*z*i*n*e' being censored?