Captain America Shield Ironman

Where in the Ironman is the shield of Captain America?

I was reading an article that says people have tarnished his shield somewhere in the laboratory Stark can someone tell me where and when in the movie? word is Captain America (somehow) appears in The Incredible Hulk

Yes, it is very evident in the scene where Mrs. Potts says, "are those bullet holes?" http://www.youtube.com/watch?v=h6Mmy49n_xE and the scene in "The Incredible Hulk" was a deleted scene, is the special features where you can see Captain America Frozen in the ground. http://www.slashfilm.com/2008/10/11/captain-america-found-in-the-incredible-hulk-deleted-scene/

Iron Man Disassembleing Captain America’s Shield?