Banks in all 50 states issued national banknotes, including Alaska and Hawaii, in addition to Puerto Rico. Alaska and Hawaii banks issued the only small-size territorial notes. Unfortunately, notes from Alaska and Puerto Rico and territorial issues in general are completely out of the range of all but the wealthiest collectors. Notes from Nevada, Arizona and Wyoming are also extremely expensive. Common notes from big-city banks in Philadelphia, New York, etc. can be had for less than $100. Pennsylvania had the highest number of note-issuing banks. Notes from relatively rare Pennsylvania banks can be had for less than $500. If you want to buy a note from a small-town Illinois bank with about 15-20 large-size notes reported, be prepared to spend more than $300 for a note in fine condition. If there are any other collectors of national banknotes on here, I'd certainly be interested in chatting with them.