Native American Dollar
The same golden-colored Sacagawea portrait, now paired with a reverse design that changes every year. A new design each year honoring Native American contributions, from the Three Sisters crops (2009) to code talkers and beyond.
Composition
Key dates to look for
2012-P Native American
$5+ uncirculatedFirst year struck only for collectors, not circulation
2015-W Native American
$20+Enhanced uncirculated coin from the Coin & Currency set — first W-mint dollar
Valuable varieties & errors
2009 Missing Edge Lettering
scarceSome 2009 dollars skipped the machine that applies the edge inscription, leaving the edge completely blank. Because the date and mint mark are on the edge, these coins have no visible date at all.
Error types found on this series
Improperly Annealed Planchet
A heat-treatment mistake turned the blank's surface an unusual color — most famously the coppery-red 'sintered' state quarters and dollars.

Off-Center Strike
The blank wasn't centered when struck, so part of the design is missing and part of the coin is blank.

Die Crack
A crack in the die fills with metal during the strike, leaving a thin raised line on the coin.
Machine Doubling
The die bounced or chattered at the moment of striking, smearing a flat shelf-like second edge onto the design.
Real photos where available (credits); others are illustrations.