“Generic” or “Common dated” coins have a random date for the type of coin chosen. Even so, there are a limited number of these coins. Before 1933 gold coins were used in common circulation, reducing the number of high quality specimens. After 1933 these coins were recalled, and for a time an Executive Order declared it illegal for US citizens to hold gold. Many of these coins were melted into bar form. The result is only a fraction of the coins minted have survived in the grades listed here.