1906 Barber Quarter. MS-66+ (PCGS). CAC. This highly lustrous and frosty Barber quarter combines a virtually brilliant reverse with an obverse that exhibits light reddish-olive iridescence. Both sides are very nice for the assigned grade with an exacting strike that is full over nearly all design elements. This premium Gem, rare from a condition standpoint, will do very well in a high quality type or date set.