The 2007 United States Mint Silver Proof Set includes 14 coins, each bearing the S mint mark of the United States Mint at San Francisco. In addition to the four new Presidential $1 Coins honoring the past Presidents of the United States: Washington, Adams, Jefferson and Madison, it also contains all five quarters from the 50 State Quarters Program for the year Montana, Washington, Idaho, Wyoming and Utah as well as the Lincoln cent, the Jefferson nickel, the Roosevelt dime, the Kennedy half-dollar, and the Golden Dollar featuring Sacagawea. Distinguishing this collection are the dime, half-dollar and five commemorative state quarters, all of which are produced in lustrous 90% silver.

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