We are pleased to offer for sale this 1999-S Pennsylvania State Quarter Silver Proof. Pennsylvania was admitted into the Union on December 12th of 1787. The reverse side of the Pennsylvania Silver State Quarter features the statue, Commonwealth, with an outline of the state and their motto, Virture, Liberty, Independence, and a keystone. The reverse side of the Pennsylvania Silver State Quarter was designed by John Mercanti. This 1999-S Pennsylvania State Quarter Silver Proof is from the San Francisco (S) Mint. All Silver State Quarters are comprised of .900 silver and .100 copper (90% silver) with a weight of 6.25 grams and a diameter of 24.3mm. These Pennsylvania State Quarter Silver Proofs come from original U.S. Mint Proof Sets. All of our Silver State Quarter Proofs have nice eye appeal and no major marks or visible problems. This Pennsylvania State Quarter Silver Proof represents a great value for the price. This 1999-S Pennsylvania State Quarter Proof Silver Coin is worth the price for any collector or numismatist who wishes to fill a space in their collection. There were 804,565 of the 1999-S Pennsylvania State Quarter Proof Silver Coins minted at the San Francisco Mint.