Act of September 26, 1890
Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That section thirty-five hundred and ten of the Revised Statutes of the United States be, and the same is hereby, amended so as to read as follows:
SEC. 3510. The engraver shall prepare from the original Dies already authorized all the working-dies required for use in the coinage of the several mints, and when new coins emblems devices, legends, or designs are authorized, shall, if required by the Director of the Mint, prepare the devices, models, hubs, or original dies for the same. The Director of the Mint shall have power, with the approval of the Secretary of the Treasury, to cause new designs or models of authorized emblems or devices to be prepared and adopted in the same manner as when new coins or devices are authorized. But no change in the design or die of any coin shall be made oftener than once in twenty-five years from and including the year of the first adoption of the design, model, die, or hub for the same coin: Provided, That no change be made in the diameter of any coin: And provided further, That nothing in this section shall prevent the adoption of new designs or models for devices or emblems already authorized for the standard silver dollar and the five-cent nickel piece as soon as practicable after the passage of this act. But the Director of the Mint shall nevertheless have power, with the approval of the Secretary of the Treasury, to engage temporarily for this purpose the services of one or more artists, distinguished in their respective departments of art, who shall be paid for such service from the contingent appropriation for the mint at Philadelphia.