Arizona Trade Exchange is a business-to-business organization that includes hundreds of in-demand companies doing business with each other without using cash. National currency, gold and silver certificates, foreign money, rare bills and notes – bring it in and see what you can get for it.Yes, a marketplace facilitator may have a physical presence in Arizona. Foreign Currency Services. National Bank of Arizona makes it easy to buy or sell foreign currency banknotes in around 80 currencies. We'll provide you with a list of the best places to exchange currency in Phoenix. If your functional currency is the U.S. dollar, you must immediately translate into dollars all items of income, expense, etc. National currency, gold and silver certificates, foreign money, rare bills and notes – bring it in and see what you can get for it. Money Changer, Address, Contact Information. Check out all of our new benefits you can take advantage of.