Morgan silver dollars were produced between 1878 and 1921, with a notable hiatus in its production between 1905 and 1920. The 1921-dated coins are the most common, and there exists a substantial collector market for pristine, uncirculated specimens of the rarer dates and mint marks. Morgan dollars are second only to Lincoln Cents in collector popularity. The large size, design and inexpensive nature of most dates of the Morgan dollar makes them highly popular.