The image is a text-based slide with a title that reads "Chinese ancient currency was made of natural shells, then various metal coins emerged. During Qin Dynasty, the emperor unified currency, since then, multiple currency forms were gradually unified to the rounded coins with a square hole, the basic pattern of Chinese ancient currency. Paper money appeared in the Song Dynasty, this was the earliest paper currency in China, also in the world. After entering the modern times, affected by western currency culture, Chinese currency experienced frequent transitions and coexistence with foreign currencies, till the period of the Republic, the silver and copper cash and paper currency issued by banks became the mainstream. In December 1948, People's Bank of China was established and Reminiscence was issued, which marks a new historical period in the history of Chinese currency." The background of the slide is a beige-colored paper with a rough texture.