Iowa: Coins.

(M-0017) The Iowa Centennial Half Dollar was authorized on August 7, 1946, with a maximum mintage of 100,000 pieces, to celebrate the 100th anniversary of Iowa’s statehood. The obverse design of the coins would feature the Old Stone Capitol in Iowa City. The inscriptions read “United States of America”, “Half Dollar”, “In God We Trust”, “Liberty”, and in small print beneath the building “Old Stone Capitol Iowa City.”
(M-0060) Iowa Centennial Half Dollar On the reverse of the coin was the image of an eagle adapted from the Iowa State Seal. The eagle holds a ribbon in its beak which reads, “‘Our Liberties Our Rights We Prize and Will Maintain”. The remaining inscriptions include “Iowa Statehood Centennial”, “1846”, “1946”, and “E Pluribus Unum.”
(C-0180) U.S. Mint: Iowa State Quarter (2004) First Day of Coin Issue: August 30, 2004  City: Anamosa, Iowa.
(C-0180) U.S. Mint: Iowa State Quarter (2004) Cover from 50-State Quarter Program with U.S. #3631 2002 37¢ U.S. Flag  First Day of Coin Issue: August 30, 2004  City: Anamosa, Iowa.
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(M-0002) 2017 Effigy Mound U.S. Quarter – Issued Feb. 6, 2017 In northeastern Iowa (across the river from Prairie du Chien, Wisconsin), effigy mound builders occupied settlements from about 300 A.D. until the 17th century. Most of the early Native Americans were of the Siouan language family, although Algonquian-speaking tribes were important in eastern Iowa after the 17th century, often displacing the western tribes in bloody conflicts.