1955 Washington Quarter. MS-67 (PCGS). CAC. Blended blue-gray and copper-rose iridescence is seen on the obverse, while the reverse is brilliant apart from a partial halo of pinkish-copper around the periphery. Fully frosted in finish with a silky smooth appearance, there is much to recommend this coin to the discerning Washington quarter enthusiast. Mintage: 18,180,181 circulation strikes.