1 oz Gold Bars. Proof & Mint Sets. 2004-S Iowa Statehood Quarter 40-Coin Roll Proof (Silver). Photos in this listing may or may not be stock photos. The photos are meant to be an indication of the product you will receive. Contains 7.23 oz of Silver. Coins will come packaged in a plastic tube or paper wrap. Designed by John Flanagan and William Cousins. Obverse: Features the profile of George Washington. Designed by John Mercanti. Reverse: Depicts the Foundation in Education with a student in a tree next to a one-room school house with a teacher. Grant Wood inscribed below. Mint mark features a S for San Francisco. Protect and display your Iowa State Quarter by adding a protective plastic capsule. These coins will make a great addition to any collection. Add these 2004-S Iowa State Quarters to your cart today! This is not a photo of the actual item.