Color Standards and Color Nomenclature by Ridgway. 1912 hardbound revised and expanded edition, color plates and text are immaculate except for a few yellows with some oxidation, tissue sheets between plates are all present, cover is intact and strong with only minor wear and rubbing, hinges nicely reinforced with cloth tape compatible in color to the end sheets, Very Fine and rare, the most sought after reference work concerning color, this 1912 edition greatly expanded and corrected the 1886 edition

Color Standards and Color Nomenclature by Ridgway. 1912, first edition, color plates & text are immaculate, just a couple of inconsequential cover nicks and one lightly dented corner, Very Fine and rare, the most sought after reference work concerning color, ex Grunin