By 1869, the Mint Act of 1837 was deemed outdated, and Treasury Secretary George Boutwell had Deputy Comptroller of the Currency John Jay Knox undertake a draft of a revised law, which was introduced into Congress by Ohio Senator John Sherman. Due to the high price of silver, little of that metal was presented at the Mint, but Knox and others foresaw that development of the Comstock Lode and other rich silver-mining areas would lower the price, causing large quantities of silver dollars to be struck and the gold standard to be endangered. During the almost three years the bill was pending before Congress, it was rarely mentioned that it would end bimetallism, though this was not concealed. Congressmen instead debated other provisions. The legislation, in addition to ending the production of the silver dollar, abolished three low-denomination coins. The bill became the Act of February 12, 1873, with the signature of President Ulysses S. Grant.