Letter by Kobori Enshu

The image shows a piece of paper with Japanese calligraphy on it. The paper is rectangular and off-white. It has a brown border on the top and bottom. The border is wider on the top and bottom than on the sides. The calligraphy is written in black ink. The calligraphy appears to be written vertically. The calligraphy takes up most of the paper. The background has a blue and gold pattern. The pattern consists of diamonds and other shapes. The background appears to be fabric or another textured material. The artist's name is Kobori Enshū. The title of the piece is "Letter".