Originally Posted by OutRiddled
It's quite obvious, if you even bothered to watch the movie.
"Remember Max. You flush it. I flaunt it." - Penguin (to Max Schreck)
He simply got them the same way he got the shredded documents from Max Schreck..
Hmmm, that doesn't begin to make any sense. Where did they ever even hint that Batman did that with blueprints to the Batmobile? How would Penguin know to even look for them or where to look for them? He doesn't know who Batman is.