In the early Showa era, Ebisuya sealed natural mineral pigments in test tubes, affixed labels, and sold them. The labels, featuring a double red border on a white background, are crucial for authenticating "Ebisuya-released" products. The pigments in this auction were acquired 20 years ago from a Japanese painter who passed away at the age of 100. 黑群録 (Kurogunroku) No. None 9.08g This is a natural pigment exhibiting a particularly dark, deep green color among the gunryoku (green group) mineral pigments. Similar to "Kurogunjo" (dark blue) in the gunjo (blue group), it is positioned as a dark color variation of gunryoku. Unlike the artificial "Kurogunroku" (black green record), it possesses rarity and antique value due to its natural origin. It is used to depict shadows of trees, depth in landscapes, and the heavy textures of clothing. 小豆茶 (Azukicha) No. 11 11.65g Azukicha (adzuki bean brown) is not as high-grade as gunjo (ultramarine) or ryokuso (malachite green), but the natural test tube packaging gives it high antique value. It is made by crushing red earth and brown minerals containing iron. In Japanese painting, it is used for clothing, utensils, and the subdued areas of backgrounds. 淡紅末 (Awabenisue) No. 6 12.28g A type of red pigment, this natural pigment displays a pale, frothy, soft red color. In Japanese painting, it is used for flowers, clothing, and the soft areas of backgrounds, expressing both vibrancy and delicacy. Early Showa era Awabenisue was made by crushing natural minerals (red earth and red minerals containing iron, etc.). 黑灰末 (Kurohaimatsu) No. 11 8.15g A type of natural mineral pigment, this refers to a blackish-gray powder pigment. It is not a vivid color like gunjo or ryokuso, but is used as a calm intermediate color. 鼡 (Nezumi) No. 13 11.5g Nezumiiro (gray) is a traditional Japanese color, representing a calm gray located between black and white. In Japanese painting, it is used for clothing, backgrounds, and the expression of shadows, providing a sense of calmness and depth. 焦茶 (Kogecha) No. 13 12.3g A type of natural mineral pigment, this is a pigment with the traditional color name meaning "burnt brown," indicating a dark, burnt brown color. In Japanese painting, it is used for clothing, wood, and the shadows of backgrounds, expressing calmness and a sense of weight. Early Showa era Kogecha was a natural mineral pigment made by crushing brown minerals and red earth containing iron. Total: 63g Especially, the natural mineral pigments in test tubes from that era have antique value and are sometimes traded at high prices as research materials and collector's items. (From AI research data) The photos and descriptions are all that is available. Please examine them thoroughly, and we look forward to your purchase."