Hello Ellen, Thank you for choosing Mearto for your online appraisal inquiry. Based on the images and information you provided, this item is: A Nihonga or Japanese Watercolor, mid 20th century and signed. Japanese watercolor, often referred to as "sumi-e" or "Nihonga," is a traditional Japanese painting technique that has a long and rich history. This style of painting emphasizes simplicity, minimalism, and the use of water-based pigments. Japanese watercolor is typically created using basic materials, including watercolor pigments, brushes, and paper. The pigments are usually made from natural materials such as minerals, ground stones, and organic substances like plants. The brushes are made from animal hair, such as that of wolves, horses, or goats. Japanese paper, known as "washi," is often used due to its unique texture and ability to absorb water and pigment effectively. Japanese watercolor places a strong emphasis on brushwork and calligraphic techniques. Artists use brushes to apply pigments in a controlled and expressive manner. A wide range of brush strokes, from delicate and fine to bold and expressive, can be found in sumi-e paintings.