This one is getting hard to find, even at auction! 

This is the "1987A"  dated first year second series "A" One Disney Dollar. Second series bills can be distinguished from first series bills by the addition of the words " and Walt Disney World" at the top right of the bill in the may be used as legal tender statement. These are the "A" prefix serial numbered bills. Offered in crisp, uncirculated condition. May be available in multiples in sequential number, please inquire first for availability. Each bill comes with a crisp Disney Dollar envelope. Envelopes will vary subject to availability, but will be new and crisp like the bill.  Dollar pictured is a representation of the bills available. Serial numbers will vary.