New answers tagged cartography
Detailed Topographical Maps of Bavaria, including complete coverage at 1:50,000 scale during or near the Napoleonic Wars, are available here: http://www.bayerische-landesbibliothek-online.de/histkarten/suche?buchstabe=D&sortierung=Titel
The ODP has an entry for historical maps. (The ODP is a directory/catalogue for websites)
I realise I am very late in answering this, but I cannot stress this enough: the best source by far for historical maps that I have ever found, is David Rumseys amazing online collections I would also like to point you in the direction of this book; Cartographies of Time though it might be more time-space related than what you are looking for.
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