Not one but two dedicated articles with gorgeous images of older and newer advertisements of Chanel perfumes are making an appearance on Fragrance.About.com
The first one tracks and reviews a top 5 of Chanel classics (excluding the largely unknown ones to the average consumer, I'm afraid, we will revert to that later on) and is posted on this link.
The second one tracks and reviews 5 contemporary, popular Chanel perfumes which are loosely inspired by other Chanel fragrances and puts them in their contextual position. You can find it on this link. Enjoy browsing! Related reading on PerfumeShrine.com : Chanel news & fragrance reviews