1911-D Indian Quarter Eagle. Weak D. AU-50 (PCGS).Light honey-gold patina adorns both sides of this overall boldly defined example. The mintmark, while faint to explain the Weak D attribution from PCGS, is discernible with the aid of a loupe. Eagerly sought in all grades, the 1911-D is the scarcest circulation strike issue in the eminently collectible Indian quarter eagle series of 1908 to 1929.