Issued in 1977, this stamp is part of the "Art of the American Indian" series, which highlighted various forms of Native American art. The stamp features a stunning piece of black-on-black pottery, a style perfected by the renowned artists Maria and Julian Martinez of the San Ildefonso Pueblo in New Mexico. The San Ildefonso Pueblo has a long and rich history of pottery making, and the black-on-black technique, with its striking contrast of matte and polished surfaces, is one of its most famous artistic innovations. The stamp's design accurately portrays the elegance and sophistication of this art form. The "Art of the American Indian" series was a significant step in recognizing and celebrating the artistic contributions of Native Americans. By featuring this exquisite piece of pottery, the USPS not only honored the artists of the San Ildefonso Pueblo but also helped to educate the public about the beauty and cultural significance of Native American art.