Rare coin collectors have six quarter type coins to add to their collections. The series started with the Draped Bust Quarter, followed by the Capped Bust Quarter, Liberty Seated Quarter, Barber Quarter, Standing Liberty Quarter, and finally the Washington Quarter, whose series is available in 90% silver and copper-nickel clad composition. Quarters were and still are widely used in commerce. Mintages of United States Quarters are fairly high and make these coins readily available to coin collectors. Some patience will be required to find choice uncirculated quarters.