Ursula Andress was 17 in An American in Rome when she played the character 'Astrid Sjöström'.
That was over 69 years ago in 1954.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 88, and has starred in 58 movies in total, 57 of those since An American in Rome was released.
In An American in Rome, I think Ursula Andress looks: