Technically, it was 371.25 grains, but please watch this INCREDIBLE interview regarding the US Dollar with Texas Congressman and Republican presidential candidate, Dr. Ron Paul. He is right on the money, so to speak.
He has been researching these issues since 1970 and was on Reagan's gold commission in the 1980s. It was for that commission that Dr. Edwin Vieira Jr, of Harvard, wrote his famous two volume magnum opus, "Pieces of Eight", which Constitutionally, historically, and legally proves the true definition of a united States "dollar", as mentioned in the Constitution, is 371.25 grains of fine silver (per the Coinage Act of 1792 and many other documents, court cases, and sources - 1,722 pages worth). Dr. Paul wrote the forward to that book, which has recently been re-published with updated information by the Gold Money Foundation. OK, enough chatter, on to the amazing interview about rapidly unfolding events:
Money has to come out of the market as Ludwig von Mises taught: www.mises.org