Breen's Complete Encyclopedia of US and Colonial coins, going for anywhere from $100.00 used and abused to $500 new. Wow I have a small collection of numismatic books and auction catalogs here but had no idea that Breen went up in value that much. If you want Numismatic books at good prices, go to Lake Books, it's a mail bid auction every few months. Fred is great to deal with and has some great books too.
Tony