That’s partly because this was the first year the series was issued, and partly because the 1921 version was struck in “very high relief ... a 1920 Indian Head Gold Coin in circulated ...

In 2007, one of the finest examples of the 13 to 15 known 1907 Saint-Gaudens Ultra High Relief $ ... and most unique coins in the world, the 1870 S Indian Princess Head Gold $3 piece is truly ...