Strong, soil-resistant Whitman albums with blue textured leatherette cover are designed with thumb notches for easy window removal.Despite not having the lowest coin mintage of the "Barber" Quarter series, the 1901-S type has the highest value of all. One 1901-S sold for $550,000 in May, 1990. It's believed the majority of 1901-S coins never entered circulation and were melted down. Liberty Head quarters are made of 90% silver and 10% copper. They measure 24.3 mm in diameter, and each weighs 6.25 grams. Liberty Head quarters were coined at the Philadelphia, Denver, New Orleans and San Francisco Mints