Unlike the regular 2002 U.S. proof set, it features seven 90% silver issues: five quarters from the enormously popular U.S. 50 State quarter series, commemorating Tennessee, Ohio, Louisiana, Indiana, and Mississippi plus the Roosevelt dime and Kennedy half dollar. Also included are a Lincoln cent, Jefferson nickel and Sacagawea dollar. Struck by the San Francisco Mint, with finest-quality proof minting, the double-struck engravings have an elegant frosted finish that sets them off against brilliant mirror backgrounds. Contains two transparent plastic cases that protect the coins' beauty while displaying both sides. Silver proof set mintages are always far below the regular proof set's production.