This is a vintage illustration showing a sequence of 21 images depicting the process of folding a paper star. Each image is numbered from 1 to 21 and shows a different stage of the folding process. The stars are all white and appear to be made of paper. The images are arranged in a grid-like pattern, with four images in the first row, four in the second, four in the third, four in the fourth, and then five in the final row. The stars start as flat, unfolded shapes and gradually become more complex, three-dimensional stars as the sequence progresses. The background is a neutral, off-white color. At the bottom of the image, there is text that reads 'Brückner, Vielecke und Vielflache.'