Vintage photos are really interesting--the poses, the "looks" that women favored. It's interesting, too, to see how our standards of beauty have changed. Many of these women are more interesting looking than what we consider to be conventionally attractive, although this woman certainly qualifies as beautiful. I found the "The Stranger at a Wedding" line from my old Emily Post Etiquette book, which contains some fairly hilarious references to what is considered to be acceptable behavior. I'm assuming a mysterious woman in red would NOT be welcome at an Emily Post wedding.