Insert bad boat pun here

I'm making a version of Crucible of War that deals with sailing ships. It's an ambitious project and almost done, but I am having trouble finding top-view images of Napoleonic-era ships to design the ship tokens with. Ideally I'd like to have French, English, Spanish and perhaps even American ships of the era, but I'll probably end up settling for some basic designs. If anyone can point me in the right direction of a website, stock gallery, or even a book I might be able to find at the library, I'd be very appreciative!