We are pleased to offer for sale this 2006-S Colorado State Quarter Proof. The theme of the Colorado State Quarter is "Colorful Colorado." Colorado was admitted into the Union on August 1st of 1876. The reverse side of the Colorado State Quarter features an image of the rugged Rocky Mountains, evergreen trees and a banner. The reverse side of the Colorado State Quarter was designed by Leonard Buckley. This 2006-S Colorado State Quarter Proof is from the San Francisco (S) Mint. All State Quarters are comprised of .750 copper and .250 nickel with a weight of 5.67 grams and a diameter of 24.3mm. These Colorado State Quarter Proofs come from original U.S. Mint Proof Sets. All of our State Quarter Proofs have nice eye appeal and no major marks or visible problems. This Colorado State Quarter Proof represents a great value for the price. This 2006-S Colorado State Quarter Proof Coin is worth the price for any collector or numismatist who wishes to fill a space in their collection. There were 2,882,428 of the 2006-S Colorado State Quarter Proof Coins minted at the San Francisco Mint.