Years
Designer
John Flanagan obverse; various reverses
Composition
Cupronickel clad (silver proofs exist)
Diameter
24.26 mm
Mass
5.67 g
Thickness
1.75 mm
Edge
Reeded
Mints
Philadelphia, Denver, San Francisco
Metal
Clad
Design
Washington obverse modified by William Cousins; fifty state reverses issued in the order of ratification, five per year.
History
The most successful modern circulating program: it put collecting back in kitchen drawers. Designs range from Delaware’s Caesar Rodney to Hawaii’s Kamehameha. Extra-silver proofs and a few doubled dies (Wisconsin extra leaf, Minnesota doubled extra tree) are the chases. The series reset how the Mint thinks about circulating commemoratives and led directly to ATB and American Women quarters.
Key dates
Varieties
2004-D · Wisconsin extra leaf (high / low)
hub · scarce
2005-P · Minnesota doubled die (extra trees)
doubled die · scarce
20 issues