Modern proof coins are made from specially selected dies inspected for perfection. The dies are then cleaned and highly polished. Coinage blanks are also polished to assure high quality. They are then hand fed into the coinage press one at a time.Receiving multiple high pressure strikes to create extra high relief detail. They are then individually inspected and handled with gloves or tongs. These attractive coins are 90% silver. The item "NICE 90% SILVER CAMEO PROOF ROLL of 40 2004-S WISCONSIN State QUARTERS" is in sale since Friday, July 20, 2018. This item is in the category "Coins & Paper Money\Coins\ US\Quarters\State Quarters (1999-2008)"." and is located in Aurora, Ohio. This item can be shipped to United States.