I just "stumbled" on these cool old bicycle posters.   Apparently, these are the images for some online poster store.  If you drill down to the root directory you get a retail site.  

I was able to find 38 different posters.  Some of these are very cool.   To see them, I just substituted the number in the url in descending order (38, 37, 36, etc...).  If there is a better way to view them I suppose someone will tell us if they know it.

Enjoy.