2009-S $1 James Knox Polk with Signature, DCAM PR69DCAM 认证号24540606, PCGS号408615

2009-S James Polk (1845-1849) Presidential Dollar PR69DCAM { PCGS-4 } (Apr'2013) Polk was the last strong pre–Civil War president, and he is the earliest of whom there are surviving photographs taken during a term in office. He is noted for his foreign policy successes. He threatened war with Britain over the issue of which nation owned the Oregon Country, then backed away and split the ownership of the region with Britain. When Mexico rejected American annexation of Texas, Polk led the nation to a sweeping victory in the Mexican-American War, which gave the United States most of its present Southwest. As he had promised, he served just one term. He died three months after leaving office of cholera.