Scott's Specialized Color Guide for United States Stamps
When color is essential for proper identification, this is the color guide to use. The handmade guide sets the standard for hard-to-identify colors, by combining the knowledge of leading experts with actual color chips from the Munsell Book of Color. The guide offers the specialized collector a simple and easy-to-use method of distinguishing the subtle shades of color needed to make the proper identification for Scott 10,11,
