calligraphy can be signed in two forms: "double style" and "single style". The two models have two models, and the single model has only the next model, but not the last model. The preceding paragraph is a paragraph
in front of the main body of calligraphy, and the font is much smaller than the main body. The main contents of the preceding paragraph: The name, source and recipient's name of the calligraphy content are stated in the preceding paragraph. The next paragraph describes the date, place and author's name of creation.
the position of the preceding paragraph should be relatively high to show respect, including name, address and modesty. As far as your situation is concerned, there is no need to be too humble between grandsons and grandsons, just show kindness and respect. Therefore, the first paragraph can be written as follows: To my grandfather Ya Shu/Please teach my grandfather. The next paragraph can be written as follows: Ding You, late autumn Sun xx, my humble pen.