The theme of the reverse of the 2009 coin is Spread of Three Sisters Agriculture.
Here you get two BU Sacagawea Native American Dollar coins from a 2009 U.S. Mint Set.
The US mints produced 2 BU Golden Sacagawea dollars in this year.
These coins were taken from a U.S. Mint set and are still sealed in the original Mint blister pack.
The set consists of one coin each from the Philadelphia and Denver Mint.
Coins are in uncirculated condition with the satin finish.
Sacagawea Coin Specifications
Content: Cladding: 77% copper, 12% zinc, 7% manganese, 4% nickel Core: 100% copper
Weight: 8.1 grams
Diameter: 26.5 millimeters
Edge: Plain
Mint: Denver & Philadelphia
Obverse Designer: Glenna Goodacre
Reverse Designer: Thomas D. Rogers Sr.
Spread of Three Sisters Agriculture
Maize was domesticated in central Mexico and spread from the southwest through North America, along with symbiotic "Three Sisters" agriculture, in which corn, beans and squash growing in the same mound enhanced the productivity of each plant. Native American skill in agriculture provided the margin of survival for the early European colonists, either through trade or direct sharing of expertise, and agricultural products native to the Americas quickly became staples throughout Europe.