Not even close... had to chuckle at that one (sorry!)
It's a souvenir cap, at best. Looks like someone just sewed a makeshift Oriole patch to it, as even a replica Orioles Cap would look more polished than that.
Below is a link to a fun and educational site that can help people gain knowledge and get started in this segment of game-used memorabilia...
http://ballcapblog.blogspot.com/2010...-cap-tags.html