Originally posted by: vailr
The U.S. Mint currently (2004) produces 3 different sizes of one dollar coins:
1. The Sacagawea Golden Dollar, made of copper & nickel. with a coating to make it appear "golden"; diameter of 26.5 mm.
2. The Silver American Eagle, which contains 1 ounce of 99.9% pure silver; diameter of 40.6 mm. These coins cannot be bought at banks, but only through certain designated bullion dealers. These are priced dependent on the "spot price" of silver, currently over $7.00 per ounce. These have a face value of $1.00.
3. Commemorative silver dollars, which have the same dimensions and metal content as the older "regular" silver dollars (last made in 1935); diameter of 38.1 mm. These contain .773 ounces of pure silver.
The current 2004 coins are:
A. The "2004 Thomas A. Edison Commemorative Silver Dollar"; can only be purchased at the U.S. Mint, for $33(uncirculated) to $37(proof). There's also a version that, for an extra $16.95, you get:
"This unique product contains an uncirculated Thomas Alva Edison commemorative Coin packaged in a fun and informative presentation case highlighting Edison's many
accomplishments. A lightbulb illuminates when the presentation case is opened. The product includes a coordinating sleeve and a Certificate of Authenticity. Maximum production: 25,000.
Price for this item is $49.95, which makes the funky new case worth $16.95.
B. The other 2004 commemorative silver dollar is the "2004 Lewis & Clark Bicentennial Silver Dollar".
Both of these (the "regular" and the "commemorative" silver dollar) coin types are 90% silver, and 10% copper.