1934A $20 Federal Reserve Note, Hawaii

At 6 A.M. on December 7, 1941 Japanese planes attacked Pearl Harbor. Just months later, the U.S. released a special series of paper money for exclusive use in Hawaii and the Pacific. Officials feared the Japanese would invade the islands and this special currency would become worthless if it fell into enemy hands. Today, these special notes are in great demand among collectors:

• Historic brown seals and serial numbers
• HAWAII overprinted in bold letters on the face and back
• Julian-Morgenthau signatures
• Emergency-issue – only during WWII