http://en.wikipedia.org/wiki/Executive_Order_6102
Executive Order 6102 is an Executive Order signed on April 5, 1933 by U.S. President Franklin D. Roosevelt “forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates.” It required all persons to deliver on or before May 1, 1933 all gold coin, gold bullion, and gold certificates owned by them to the Federal Reserve. Under the Trading With the Enemy Act of October 6, 1917, as amended on March 9, 1933, violation of Executive Order 6102 was punishable by fine up to $10,000 ($166,640 if adjusted for inflation as of 2008) or up to ten years in prison, or both. Because of this forced immediate sale of gold to the Federal Reserve at the government set price of $20.67 per ounce, this Executive Order is often referred to as the Gold Confiscation of 1933. Shortly after this forced sale, the price of gold from the treasury for international transactions was raised to $35 an ounce; the U.S. government thereby devalued the U.S. dollar by 41%.
http://www.presidency.ucsb.edu/ws/index.php?pid=14611&st=&st1=
34 - Executive Order 6102 - Requiring Gold Coin, Gold Bullion and Gold Certificates to Be Delivered to the Government
April 5, 1933
http://www.answers.com/topic/gold-reserve-act
The act also authorized the president to devalue the gold dollar so that it would have no more than 60 percent of its existing weight. Under this authority the president, on 31 January 1934, fixed the value of the gold dollar at 59.06 cents.
That’s what I thought. The government bought gold for $20/oz and then revalued it at $35/oz thus devaluing the dollar.