US Treasurer Rosie Rios displays the "Year of Horse" lucky money note during a press conference in Washington D.C., capital of the United States, Dec. 3, 2013. The US Treasury Department on Tuesday unveiled its latest seasonal addition to its one-dollar-note "Lucky Money" collection to celebrate the upcoming Chinese Lunar New Year of Horse in 2014. (Xinhua/Zhang Jun)

US Treasurer Rosie Rios displays the "Year of Horse" lucky money note during a press conference in Washington D.C., capital of the United States, Dec. 3, 2013. The US Treasury Department on Tuesday unveiled its latest seasonal addition to its one-dollar-note "Lucky Money" collection to celebrate the upcoming Chinese Lunar New Year of Horse in 2014. (Xinhua/Zhang Jun)

Photo taken on Dec. 3, 2013 shows appearance of the "Year of Horse" lucky money note during a press conference in Washington D.C., capital of the United States, Dec. 3, 2013. The US Treasury Department on Tuesday unveiled its latest seasonal addition to its one-dollar-note "Lucky Money" collection to celebrate the upcoming Chinese Lunar New Year of Horse in 2014. (Xinhua/Zhang Jun)

Photo taken on Dec. 3, 2013 shows appearance of the "Year of Horse" lucky money note during a press conference in Washington D.C., capital of the United States, Dec. 3, 2013. The US Treasury Department on Tuesday unveiled its latest seasonal addition to its one-dollar-note "Lucky Money" collection to celebrate the upcoming Chinese Lunar New Year of Horse in 2014. (Xinhua/Zhang Jun)