Ashbrook (Democrat-Ohio) on April 16, 1917. Ashbrook was not only chairman of the House Committee on Coinage, Weights and Measures, he was a noted coin collector. McAdoo explained the need for the redesign, "since the original dies were made the artist has found that they are not true to the original design and that a great improvement can be made in the artistic value and appearance of the coin by making the slight changes the act contemplates". Legislation to authorize a change was debated in the Senate on April 30, 1917; Oklahoma Senator Robert L. Owen represented that the change was needed because the coins would not stack. Wyoming Senator Francis E. Warren complained that the Mint had needed legislation to adjust coin designs in the past and it would be simpler if officials would ensure that coins would stack before releasing them into circulation. Nevertheless, the bill passed. The matter was brought up in the House of Representatives on June 25, led by Congressman Ashbrook, who told his colleagues both that the issued design was not true to the artist's concept, and that the coins would not stack well. Debate in the House focused on the fact that the legislation gave the Mint until July 1918 to effect the change as Ashbrook had stated that the Mint, having prepared the new design, was only waiting for the bill to pass to commence production. One congressman offered an amendment to change the date to 1917, and others spoke in favor of that, but they desisted when they realized that making a change would require the Senate to act again. The bill passed the House, and became law on July 9, 1917. In August, MacNeil wrote to Joyce requesting samples of the revised coin and expressing his pleasure it was being struck according to his design. Production and collecting The Standing Liberty quarter was struck at the Philadelphia Mint from 1916 to 1930 with the exception only of 1922, when no quarters were struck at any mint. It was produced less regularly at Denver and San Francisco beginning in 1917. The mint mark "D" for Denver or "S" for San Francisco may be found at the base of the wall, just to the left of Liberty's visible foot. The key date in the series is the 1916, with a mintage of 52,000. It catalogs for $3,250 even in worn Good-4 condition.