Ok a couple of things.
First Jimmy's correct id is thekingofclout. If you search for his id, i'm sure you'll find most of the threads with vintage photos.
Searching for "show your" didn't actually work that well when I tried it, so here are a couple of examples of the threads I'm talking about.
Mantle stuff
http://www.net54baseball.com/showthr...highlight=show
Babe stuff
http://www.net54baseball.com/showthr...highlight=show
Lou stuff
http://www.net54baseball.com/showthr...highlight=show
Advertising pieces
http://www.net54baseball.com/showthr...highlight=show
Also you may want to check out the monthly pick up threads. Everything is posted there, so you get to see a lot of stuff.
Lastly, Andy be careful what you wish for..
I came to this board as a small Lou Gehrig collector who also is working on a signed 1934 Goudey set. 6-8months later, the majority of my budget seems to be going into vintage photographs. Be very careful!