A Japanese photographer traveled to Ivy League schools in the late 1960s to document the American Trad/Ivy League Preppy style of the era. Copies of the book are very hard to come by (a copy was just sold on eBay for $1500), and photos from the book have been circulating the blogosphere like crazy in recent months.
Here are the photographs of Princeton in the book. Take a gander! And pine away for a bygone era. (Except for the whole anti-black/anti-women part...)
(image sources: http://thetrad.blogspot.com/2008/12/take-ivy-chapter-i.html & http://thetrad.blogspot.com/2008/12/take-ivy-chapter-ii.html & http://acontinuouslean.com/2008/05/19/take-ivy/)