The 1901-S quarter is by far the most famous key date in the Barber quarter series. It's so popular as a date that this issue transcends the series and key date collectors seek this coin out. Gorgeous pastel tints, this piece is absolutely outstanding for the grade with pleasing patches of violet and russet toning. PCGS has just 2 specimens of this extremely rare coin in this grade and only 1 higher. PCGS+ grade for premium quality at the top of end of the assigned grade. CAC approved for quality. The MS68+ example is housed in the Hansen Collection and this would be the finest example that is available for collectors.