Joint calligraphy

The image shows a long rectangular piece of aged paper with black Chinese calligraphy written on it. The paper is a light brown color with darker edges and a red mark in the bottom-right corner. There are 24 columns of characters written in black ink. The text is written in a vertical line from top to bottom. The paper is placed on a black background, and there is a small color palette at the bottom of the image. The title of the work is "Joint calligraphy by Huang Daozhou".