The Sacagawea Dollar introduced a new type of composition created to have a distinctive golden color. The composition consists of a core of pure copper with an outer layer of manganese brass with a composition of 77% copper, 12% zinc, 7% manganese and 4% nickel. This same composition was later used for the Presidential Dollar series introduced in 2007.
All Sacagawea Dollars have a diameter of 26.5 mm, and have been struck at the Philadelphia, Denver and West Point Mints for circulation. The latter have a P mintmark as well to prevent them from being hoarded by collectors. Proof issues have been struck at the San Francisco Mint for every year, and have an S mintmark. All these mintmarks are located on the obverse, underneath the date.
Dates: 2000 - 2008
Mint Mark: none (Philadelphia), D (Denver), S (San Francisco)
Composition: 88.5% copper, 6% zinc, 3.5% manganese, 2% nickel
Weight: 8.1 grams
Diameter: 26.5 mm
Edge: Plain
Designer: Glenna Goodacre (obverse), Thomas D. Rogers Sr. (reverse)
