Here's a before and after horror story for you. The bike came to me as a still wrapped spanking noo frame dating 1940 or therabouts. Instead of keeping it for future generations to look at as what a brand new unbuilt 40's frame is like, I made the mistake of building it up, and worst of all, riding it...
Before is here
http://membres.lycos.fr/partspeekers/newpage17.html
And this, may I be forgiven for my crimes, is after... (think it's a thumnail you may have to click on).