John, Look on Ebay. I was able to purchase a REALLY good map of NJ in 1856. That's what I was looking for, but I bet you would be able to find older ones. You are going to be surprised at how many choices you'll find. Good luck, Ana PS I have the email of the guy I purchased from; I believe his is a business. You could always email him & ask. But going to Ebay first, might give you more leads.