The 2006 San Francisco mint produced a series of state and territorial quarters as part of the 50 State Quarters program, showcasing unique designs representing each state or territory. These quarters are made of a cupro-nickel alloy and feature distinct motifs reflecting the history, culture, or landmarks of their respective states. The San Francisco minted versions have an "S" mint mark, indicating their production at the San Francisco Mint, and may be available in uncirculated and proof qualities, appealing to collectors due to their limited mintage and thematic significance.

Item Denomination Series Year Mint
2006-S (San Francisco) State & Territorial Quarters 25¢ (Twenty Five Cents, Quarter) State & Territorial Quarters 2006 San Francisco