theoinglis:

Annyas.com - The Typography of Sanborn New York City Maps

Old maps, as well as being awesome in themselves, are often a great source of some very extreme typography! The old map of France I bought months a go has a bit on the corner and back. Not as over the top, but still nice. Sometimes the backs of old photos are a great place to find this sort of type as well.

Loads more map typography here.